1854–55 United States House of Representatives elections

The 1854–55 United States House of Representatives elections were held in 31 states for all 234 seats between August 4, 1854, and November 6, 1855, during President Franklin Pierce's term. Each state legislature separately set a date to elect representatives to the House of Representatives before the 34th Congress convened its first session on December 3, 1855.

1854–55 United States House of Representatives elections

← 1852 & 1853 August 4, 1854 – November 6, 1855 1856 & 1857 →
All 234 seats in the United States House of Representatives 118 seats needed for a majority
First party Second party Third party   Leader William A. Richardson Henry M. Fuller Nathaniel P. Banks Party Democratic Whig Know Nothing Leader's seat Illinois 5th Pennsylvania 12th Massachusetts 7th Last election 150 seats 68 seats 0 seats Seats won 83 54 51 Seat change 69 14 51 Popular vote 1,418,553 580,929 631,510 Percentage 43.95% 18.00% 19.56% Swing 5.87pp 23.61pp 19.25pp   Fourth party Fifth party Sixth party   Party Anti-Nebraska Republican People's Last election Pre-creation Pre-creation Pre-creation Seats won 22 13 9 Seat change 22 13 9 Popular vote 196,461 182,245 102,423 Percentage 6.09% 5.65% 3.17% Swing New Party New Party New Party   Seventh party Eighth party   Party Free Soil Independent Last election 4 seats 3 seats Seats won 1 1 Seat change 3 2 Popular vote 22,928 84,196 Percentage 0.71% 2.61% Swing 3.28pp 0.18pp
Results:      Democratic gain      Whig gain      Democratic hold      Whig hold      American gain      Anti-Nebraska gain      Republican gain      People's gain      Independent gain
Speaker before election Linn Boyd Democratic Elected Speaker Nathaniel P. Banks Know Nothing/American

This midterm election was among the most disruptive in American history, auguring the collapse of the Second Party System. Both major parties, the Democratic Party and the Whig Party, lost critical voter support. The two parties had been organized as rivals for roughly 20 years. Northern voters strongly opposed to the Kansas–Nebraska Act shifted sharply against the Democrats. The Whigs also lost seats as the party disintegrated over the issue of slavery.

The elected majority temporarily coalesced as the Opposition Party. This transitional party included Whigs, Free Soil members, American Party members or Know Nothings, the People's Party of Indiana, Anti-Nebraska candidates, disaffected Northern Democrats, and members of the nascent Republican Party, which soon would absorb most of these factions and replace the Whigs to rival the Democrats.

Candidates opposed to the Democratic Party won widely in the Northern United States through November 1854. The American Party, ignoring slavery and opposing immigration (particularly by Catholics from Ireland and Germany) won seats from both major parties, but to the net loss of Democrats, in New England and the Southern United States from November 1854 into 1855.

Congress had passed the Kansas–Nebraska Act in May 1854 after aggressive sponsorship by the Pierce Administration and Democrats led by Senator Stephen Douglas, including radical pro-slavery legislators. With widely foreseen risks and immediately negative results, the Act discredited the Democratic Party, fueling new partisan and sectional rancor. The Act repealed the 1820 Missouri Compromise and triggered the violent Bleeding Kansas conflict, creating uncertainty on the Western frontier by abruptly making slavery potentially legal in territories originally comprising the northern portion of the Louisiana Purchase. The numerous contemporary settlers of these territories then were expected to determine the status of slavery locally. This idea appealed to Democratic politicians and to some voters, but proved unworkable particularly in Kansas where more numerous Northern settlers and geographically closer Southern settlers violently disputed the status of slavery. Even some proslavery legislators and voters, particularly Southern Whigs, felt that repealing the Missouri Compromise was politically reckless, and that attempting to push slavery by law and force into territories where most settlers predictably were unlikely to want it could endanger slavery nationally, or even in the South. These fears proved prescient.

More than 21 representatives vied for the post of speaker of the House. After two months and 133 ballots, American Party representative Nathaniel Banks of Massachusetts, also a Free Soiler, defeated Democrat William Aiken of South Carolina by plurality, 103–100. To date, Banks is the only speaker to come from a third party.

Election summaries

State	Type	Date	Total seats	Opposition		Democratic		Know Nothing
				Seats	Change	Seats	Change	Seats	Change
Arkansas	Districts	August 4, 1854	2	0		2		0
Iowa	Districts	August 7, 1854	2	1		1		0
Missouri	Districts		7	6	2	1	2	0
Vermont	Districts	September 5, 1854	3	3		0		0
California	At-large	September 6, 1854	2	0		2		0
Maine	Districts	September 11, 1854	6	5	2	1	2	0
Florida	At-large	October 2, 1854	1	0		1		0
South Carolina	Districts	October 9–10, 1854	6	0		6		0
Indiana	Districts	October 10, 1854	11	9	8	2	8	0
Ohio	Districts		21	21	12	0	12	0
Pennsylvania	Districts		25	17	8	7	9	1	1
Illinois	Districts	November 7, 1854 (Election Day)	9	4		5		0
Michigan	Districts		4	3	3	1	3	0
New Jersey	Districts		5	4	3	1	3	0
New York	Districts		33	25	13	5	16	3	3
Wisconsin	Districts		3	2	2	1	2	0
Massachusetts	Districts	November 12, 1854	11	0	10	0	1	11	11
Delaware	At-large	November 14, 1854	1	0		0	1	1	1
Late elections (after the March 4, 1855 beginning of the term)
New Hampshire	Districts	March 13, 1855	3	0		0	3	3	3
Connecticut	Districts	April 2, 1855	4	0		0	4	4	4
Rhode Island	Districts	April 4, 1855	2	0		0	2	2	2
Virginia	Districts	May 24, 1855	13	0		12	1	1	1
North Carolina	Districts	August 2, 1855	8	0	3	5		3	3
Tennessee	Districts		10	0	5	5		5	5
Alabama	Districts	August 6, 1855	7	0	1	5	1	2	2
Kentucky	Districts		10	0	5	4	1	6	6
Texas	Districts		2	0		1	1	1	1
Georgia	Districts	October 1, 1855	8	0	2	6		2	2
Louisiana	Districts	November 5, 1855	4	0	1	3		1	1
Mississippi	Districts	November 5–6, 1855	5	0		4	1	1	1
Maryland	Districts	November 6, 1855	6	0	2	2	2	4	4
Total			234	100 42.7%	29	83 35.0%	75	51 21.8%	51

↓

83	51	100
Democratic	Know Nothing	Opposition

Popular vote Democratic   43.95% Know Nothing   19.56% Whig   18.00% Anti-Nebraska   6.09% Republican   5.65% People's   3.17% Independent   2.61% Free Soil   0.71% Others   0.26%

House seats Democratic   34.62% Whig   23.08% Know Nothing   21.79% Anti-Nebraska   9.40% Republican   5.56% People's   3.85% Independent   0.43% Free Soil   0.43%

Special elections

There were four special elections to the 33rd United States Congress, listed here by date and district.

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Pennsylvania 8	Henry A. Muhlenberg	Democratic	1852	Incumbent died January 9, 1854. New member elected February 4, 1854. Democratic hold.	▌Y J. Glancy Jones (Democratic) 60.01% ▌William H. Keim (Whig) 39.99%
Massachusetts 1	Zeno Scudder	Whig	1850	Incumbent resigned March 4, 1854. New member elected April 17, 1854. Whig hold.	▌Y Thomas D. Eliot (Whig) 52.04% ▌Abraham H. Howland (Independent) 47.96%
New York 12	Gilbert Dean	Democratic	1850	Incumbent resigned July 3, 1854. New member elected November 7, 1854. Whig gain.	▌Y Isaac Teller (Whig) 50.56% ▌Samuel Morse (Soft-Shell Dem.) 31.27% ▌Charles Robinson (Hard-Shell Dem.) 18.17%
Kentucky 3	Presley Ewing	Whig	1851	Incumbent died September 27, 1854. New member elected November 13, 1854. Whig hold.	▌Y Francis Bristow (Whig) 81.58% ▌A. J. Halberson (Unknown) 18.42%

Alabama

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Alabama 1	Philip Phillips	Democratic	1853	Incumbent retired. Know Nothing gain.	▌Y Percy Walker (Know Nothing) 52.40% ▌James A. Stallworth (Democratic) 47.60%
Alabama 2	James Abercrombie	Whig	1851	Incumbent retired. Democratic gain.	▌Y Eli S. Shorter (Democratic) 54.89% ▌Julius C. Alford (Know Nothing) 45.11%
Alabama 3	James F. Dowdell	Democratic	1853	Incumbent re-elected.	▌Y James F. Dowdell (Democratic) 52.20% ▌Thomas H. Watts (Know Nothing) 47.80%
Alabama 4	William Russell Smith	Democratic	1851	Incumbent re-elected to a new party. Know Nothing gain.	▌Y William Russell Smith (Know Nothing) 59.83% ▌Sydenham Moore (Democratic) 40.17%
Alabama 5	George S. Houston	Democratic	1843	Incumbent re-elected.	▌Y George S. Houston (Democratic) 100.00% unopposed
Alabama 6	Williamson R. W. Cobb	Democratic	1847	Incumbent re-elected.	▌Y Williamson R. W. Cobb (Democratic) 62.87% ▌James M. Adams (Independent) 37.13%
Alabama 7	Sampson Willis Harris	Democratic	1847	Incumbent re-elected.	▌Y Sampson Willis Harris (Democratic) [data missing]

Arkansas

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Arkansas 1	Alfred B. Greenwood	Democratic	1852	Incumbent re-elected.	▌Y Alfred B. Greenwood (Democratic) 97.99% ▌W. C. Myrtle (Independent) 2.01%
Arkansas 2	Edward A. Warren	Democratic	1852	Incumbent retired. Democratic hold.	▌Y Albert Rust (Democratic) 67.0% ▌E. G. Walker (Whig) 32.9%

California

Note: From statehood to 1864, California's representatives were elected at-large, with the top two vote-getters winning election from 1849 to 1858.

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
California at-large 2 seats	Milton S. Latham	Democratic	1852	Incumbent withdrew. Democratic hold.	(Elected on a general ticket) ▌Y James W. Denver (anti-Broderick Democratic) 22.41% ▌Y Philemon T. Herbert (anti-Broderick Democratic) 22.24% ▌George Washington Bowie (Whig) 21.14% ▌Calhoun Benham (Whig) 20.94% ▌James Churchman (Broderick Democratic) 6.09% ▌James A. McDougall (Broderick Democratic) 6.07% ▌Milton S. Latham (Broderick Democratic) 1.12%
	James A. McDougall	Democratic	1852	Incumbent lost re-election. Democratic hold.

Connecticut

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Connecticut 1	James T. Pratt	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Ezra Clark Jr. (Know Nothing) 51.8% ▌James T. Pratt (Democratic) 47.6%
Connecticut 2	Colin M. Ingersoll	Democratic	1851	Incumbent retired. Know Nothing gain.	▌Y John Woodruff (Know Nothing) 55.4% ▌Samuel Arnold (Democratic) 44.4%
Connecticut 3	Nathan Belcher	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Sidney Dean (Know Nothing) 67.4% ▌Joel W. White (Democratic) 32.4%
Connecticut 4	Origen S. Seymour	Democratic	1851	Incumbent retired. Know Nothing gain.	▌Y William W. Welch (Know Nothing) 55.9% ▌William H. Noble (Democratic) 43.8%

Delaware

Delaware's result by county,

  Cullen—50-60%

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Delaware at-large	George R. Riddle	Democratic	1850	Incumbent lost re-election. Know Nothing gain.	▌Y Elisha D. Cullen (Know Nothing) 51.85% ▌George R. Riddle (Democratic) 48.15%

Florida

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Florida at-large	Augustus Maxwell	Democratic	1852	Incumbent re-elected.	▌Y Augustus Maxwell (Democratic) 55.26% ▌Thomas Brown (Whig) 44.74%

Georgia

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Georgia 1	James Lindsay Seward	Democratic	1853	Incumbent re-elected.	▌Y James Lindsay Seward (Democratic) 57.62% ▌Samuel Varnadoe (Know Nothing) 42.38%
Georgia 2	Alfred H. Colquitt	Democratic	1853	Incumbent retired. Democratic hold.	▌Y Martin J. Crawford (Democratic) 51.99% ▌Willis Hawkins (Know Nothing) 48.01%
Georgia 3	Jack Bailey	Democratic	1851	Incumbent retired. Know Nothing gain.	▌Y Robert Pleasant Trippe (Know Nothing) 53.97% ▌James Milton Smith (Democratic) 46.03%
Georgia 4	William B. W. Dent	Democratic	1853	Incumbent retired. Democratic hold.	▌Y Hiram B. Warner (Democratic) 50.26% ▌Benjamin Harvey Hill (Know Nothing) 49.74%
Georgia 5	Elijah W. Chastain	Democratic	1851	Incumbent retired. Democratic hold.	▌Y John H. Lumpkin (Democratic) 58.61% ▌Lewis Tumblin (Know Nothing) 41.39%
Georgia 6	Junius Hillyer	Democratic	1851	Incumbent retired. Democratic hold.	▌Y Howell Cobb (Democratic) 63.78% ▌Leonidas Franklin (Know Nothing) 36.22%
Georgia 7	David A. Reese	Whig	1853	Incumbent retired. Know Nothing gain.	▌Y Nathaniel Greene Foster (Know Nothing) 51.13% ▌Linton Stephens (Democratic) 48.87%
Georgia 8	Alexander H. Stephens	Whig	1853	Incumbent re-elected as a Democrat. Democratic gain.	▌Y Alexander H. Stephens (Democratic) [data missing]

Illinois

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Illinois 1	Elihu B. Washburne	Whig	1852	Incumbent re-elected as a Republican.	▌Y Elihu B. Washburne (Republican) 69.33% ▌William M. Jackson (Democratic) 22.99% ▌E. P. Ferry (Anti-Nebraska) 7.68%
Illinois 2	John Wentworth	Democratic	1852	Incumbent retired. Republican gain.	▌Y James H. Woodworth (Republican) 53.05% ▌Robert S. Blackwell (Whig) 19.84% ▌John B. Turner (Democratic) 19.48% ▌Edward L. Mayo (Anti-Nebraska) 7.63%
Illinois 3	Jesse O. Norton	Whig	1852	Incumbent re-elected as a Republican.	▌Y Jesse O. Norton (Republican) 62.76% ▌John A. Drake (Democratic) 37.24%
Illinois 4	James Knox	Whig	1852	Incumbent re-elected as a Republican.	▌Y James Knox (Republican) 57.22% ▌William McMurtry (Democratic) 42.79%
Illinois 5	William A. Richardson	Democratic	1847 (special)	Incumbent re-elected.	▌Y William A. Richardson (Democratic) 52.38% ▌Archibald Williams (Republican) 47.62%
Illinois 6	Richard Yates	Whig	1852	Incumbent lost re-election. Democratic gain.	▌Y Thomas L. Harris (Democratic) 50.50% ▌Richard Yates (Whig) 49.50%
Illinois 7	James C. Allen	Democratic	1852	Incumbent re-elected. Election disqualified. Democratic loss.	▌James C. Allen (Democratic) 50.00% ▌William Beatty Archer (Whig) 50.00%
Illinois 8	William Henry Bissell	Independent Democratic	1848	Incumbent retired. Democratic gain.	▌Y Lyman Trumbull (Democratic) 59.87% ▌Philip Bond Fouke (Democratic) 40.13%
Illinois 9	Willis Allen	Democratic	1850	Incumbent retired. Democratic hold.	▌Y Samuel S. Marshall (Democratic) 64.67% ▌G. Jay S. Turney (Republican) 22.15% ▌DeWitt C. Barber (Unknown) 9.71% ▌A. Grow (Unknown) 2.05% ▌S. A. Rowan (Unknown) 1.42%

Indiana

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Indiana 1	Smith Miller	Democratic	1852	Incumbent re-elected.	▌Y Smith Miller (Democratic) 52.15% ▌Sam Hall (People's) 47.85%
Indiana 2	William Hayden English	Democratic	1852	Incumbent re-elected.	▌Y William Hayden English (Democratic) 51.70% ▌Thomas C. Slaught (People's) 48.30%
Indiana 3	Cyrus L. Dunham	Democratic	1849	Incumbent lost re-election. People's gain.	▌Y George G. Dunn (People's) 54.53% ▌Cyrus L. Dunham (Democratic) 45.47%
Indiana 4	Jim Lane	Democratic	1852	Incumbent retired. People's gain.	▌Y William Cumback (People's) 51.92% ▌William G. Holman (Democratic) 48.08%
Indiana 5	Samuel W. Parker	Whig	1851	Incumbent retired. People's gain.	▌Y David P. Holloway (People's) 64.25% ▌J. J. Buckles (Democratic) 35.76%
Indiana 6	Thomas A. Hendricks	Democratic	1851	Incumbent lost re-election. People's gain.	▌Y Lucien Barbour (People's) 51.41% ▌Thomas A. Hendricks (Democratic) 48.59%
Indiana 7	John G. Davis	Democratic	1851	Incumbent lost re-election. People's gain.	▌Y Harvey D. Scott (People's) 52.58% ▌John G. Davis (Democratic) 47.42%
Indiana 8	Daniel Mace	Democratic	1851	Incumbent re-elected to a new party. People's gain.	▌Y Daniel Mace (People's) 56.92% ▌James Davis (Democratic) 43.08%
Indiana 9	Norman Eddy	Democratic	1852	Incumbent lost re-election. People's gain.	▌Y Schuyler Colfax (People's) 54.85% ▌Norman Eddy (Democratic) 45.15%
Indiana 10	Ebenezer M. Chamberlain	Democratic	1852	Incumbent lost re-election. People's gain.	▌Y Samuel Brenton (People's) 56.00% ▌Ebenezer M. Chamberlain (Democratic) 44.00%
Indiana 11	Andrew J. Harlan	Democratic	1852	Incumbent lost re-election. People's gain.	▌Y John U. Pettit (People's) 56.59% ▌James R. Slack (Democratic) 43.41%

Iowa

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Iowa 1	Bernhart Henn	Democratic	1850	Incumbent retired. Democratic hold.	▌Y Augustus Hall (Democratic) 50.27% ▌R. L. Clark (Whig) 49.50% ▌J. L. Ashbaugh (Independent) 0.23%
Iowa 2	William Vandever	Whig	1852	Incumbent retired. Whig hold.	▌Y James Thorington (Whig) 53.33% ▌Stephen P. Hempstead (Democratic) 46.09% ▌Augustus Hall (Independent) 0.57%

Kentucky

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Kentucky 1	Linn Boyd	Democratic	1839	Incumbent retired. Democratic hold.	▌Y Henry C. Burnett (Democratic) 61.77% ▌Hughes (Know Nothing) 38.23%
Kentucky 2	Benjamin E. Grey	Whig	1851	Incumbent lost re-election. Know Nothing gain.	▌Y John P. Campbell Jr. (Know Nothing) 55.30% ▌Samuel Peyton (Democratic) 44.70%
Kentucky 3	Francis Bristow	Whig	1854 (special)	Incumbent retired. Know Nothing gain.	▌Y Warner Underwood (Know Nothing) 56.89% ▌James P. Bates (Democratic) 43.12%
Kentucky 4	James Chrisman	Democratic	1853	Incumbent retired. Democratic hold.	▌Y Albert G. Talbott (Democratic) 50.06% ▌Fountain T. Fox (Know Nothing) 49.94%
Kentucky 5	Clement S. Hill	Whig	1853	Incumbent retired. Democratic gain.	▌Y Joshua Jewett (Democratic) 51.64% ▌C. G. Wintersmith (Whig) 48.37%
Kentucky 6	John Milton Elliott	Democratic	1853	Incumbent re-elected.	▌Y John Milton Elliott (Democratic) 54.80% ▌George W. Dunlap (Know Nothing) 45.20%
Kentucky 7	William Preston	Whig		Incumbent lost re-election. Know Nothing gain.	▌Y Humphrey Marshall (Know Nothing) 61.29% ▌William Preston (Whig) 38.71%
Kentucky 8	John C. Breckinridge	Democratic	1851	Incumbent retired. Know Nothing gain.	▌Y Alexander Keith Marshall (Know Nothing) 55.98% ▌James O. Harrison (Democratic) 44.02%
Kentucky 9	Leander Cox	Whig	1853	Incumbent re-elected as a Know Nothing. Know Nothing gain.	▌Y Leander Cox (Know Nothing) 55.06% ▌Richard H. Stanton (Democratic) 44.94%
	Richard H. Stanton Redistricted from the 10th district	Democratic	1849	Incumbent lost re-election. Democratic loss.
Kentucky 10	None (new district)			New seat. Know Nothing gain.	▌Y Samuel F. Swope (Know Nothing) 51.72% ▌Henry C. Harris (Democratic) 48.28%

Louisiana

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Louisiana 1	William Dunbar	Democratic	1852	Incumbent retired. Know Nothing gain.	▌Y George Eustis Jr. (Know Nothing) 53.40% ▌Albert Fabre (Democratic) 46.60%
Louisiana 2	Theodore G. Hunt	Whig	1852	Incumbent lost re-election. Democratic gain.	▌Y Miles Taylor (Democratic) 51.54% ▌Theodore G. Hunt (Know Nothing) 48.46%
Louisiana 3	John Perkins Jr.	Democratic	1852	Incumbent retired. Democratic hold.	▌Y Thomas G. Davidson (Democratic) 50.62% ▌Preston Pond Jr. (Know Nothing) 49.38%
Louisiana 4	Roland Jones	Democratic	1852	Incumbent retired. Democratic hold.	▌Y John M. Sandidge (Democratic) 58.05% ▌William B. Lewis (Know Nothing) 41.95%

Maine

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Maine 1	Moses Macdonald	Democratic	1850	Incumbent retired. Republican gain.	▌Y John M. Wood (Republican) 59.36% ▌Samuel Wells (Democratic) 39.91% ▌Lorenzo D. Wilkinson (Independent) 0.74%
Maine 2	Samuel Mayall	Democratic	1852	Incumbent retired. Republican gain.	▌Y John J. Perry (Republican) 56.88% ▌William K. Kimball (Democratic) 42.46% ▌Charles J. Gilman (Independent) 0.66%
Maine 3	E. Wilder Farley	Whig	1852	Incumbent lost re-election. Republican gain.	▌Y Ebenezer Knowlton (Republican) 43.94% ▌Jonathan G. Dickerson (Democratic) 30.78% ▌E. Wilder Farley (Whig) 25.28%
Maine 4	Samuel P. Benson	Whig	1852	Incumbent re-elected as a Republican.	▌Y Samuel P. Benson (Republican) 77.05% ▌George Rogers (Democratic) 22.95%
Maine 5	Israel Washburn Jr.	Whig	1850	Incumbent re-elected as a Republican.	▌Y Israel Washburn Jr. (Republican) 63.09% ▌Samuel H. Blake (Democratic) 36.91%
Maine 6	Thomas J. D. Fuller	Democratic	1848	Incumbent re-elected.	▌Y Thomas J. D. Fuller (Democratic) 42.39% ▌James A. Milliken (Republican) 38.74% ▌Noah Smith (Whig) 18.88%

Maryland

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Maryland 1	John Rankin Franklin	Whig	1853	Incumbent retired. Democratic gain.	▌Y James Augustus Stewart (Democratic) 51.27% ▌John Dennis (Know Nothing) 48.73%
Maryland 2	Jacob Shower	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y James B. Ricaud (Know Nothing) 56.58% ▌Jacob Shower (Democratic) 43.42%
Maryland 3	Joshua Van Sant	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y J. Morrison Harris (Know Nothing) 50.21% ▌Joshua Van Sant (Democratic) 49.79%
Maryland 4	William T. Hamilton	Democratic	1849	Incumbent lost re-election. Know Nothing gain.	▌Y Henry Winter Davis (Know Nothing) 52.36% ▌William T. Hamilton (Democratic) 47.64%
Maryland 5	Henry May	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Henry William Hoffman (Know Nothing) 51.60% ▌Henry May (Democratic) 48.40%
Maryland 6	Augustus Rhodes Sollers	Whig	1853	Incumbent retired. Democratic gain.	▌Y Thomas Fielder Bowie (Democratic) 53.93% ▌William Watkins (Know Nothing) 46.07%

Massachusetts

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Massachusetts 1	Thomas D. Eliot	Whig	1854 (special)	Incumbent lost re-election. Know Nothing gain.	▌Y Robert B. Hall (Know Nothing) 63.70% ▌Thomas D. Eliot (Whig) 26.63% ▌Abraham H. Rowland (Democratic) 9.66%
Massachusetts 2	Samuel L. Crocker	Whig	1852	Incumbent lost re-election. Know Nothing gain.	▌Y James Buffinton (Know Nothing) 68.25% ▌Samuel L. Crocker (Whig) 16.20% ▌Charles R. Vickery (Democratic) 9.01% ▌Gersham B. Weston (Free Soil) 6.55%
Massachusetts 3	J. Wiley Edmands	Whig	1852	Incumbent retired. Know Nothing gain.	▌Y William S. Damrell (Know Nothing) 74.76% ▌Nathaniel F. Safford (Whig) 16.67% ▌Edward Avery (Democratic) 5.38% ▌Arthur W. Austin (Independent) 2.26%
Massachusetts 4	Samuel H. Walley	Whig	1852	Incumbent lost re-election. Know Nothing gain.	▌Y Linus B. Comins (Know Nothing) 57.45% ▌Samuel H. Walley (Whig) 32.00% ▌Samuel R. Skinner (Democratic) 10.55%
Massachusetts 5	William Appleton	Whig	1850	Incumbent lost re-election. Know Nothing gain.	▌Y Anson Burlingame (Know Nothing) 61.64% ▌William Appleton (Whig) 32.12% ▌William Parmenter (Democratic) 6.24%
Massachusetts 6	Charles W. Upham	Whig	1852	Incumbent lost re-election. Know Nothing gain.	▌Y Timothy Davis (Know Nothing) 65.39% ▌Charles W. Upham (Whig) 28.44% ▌Nathaniel J. Lord (Democratic) 5.57% ▌George Hood (Independent) 0.59%
Massachusetts 7	Nathaniel P. Banks	Democratic	1852	Incumbent re-elected to a new party. Know Nothing gain.	▌Y Nathaniel P. Banks (Know Nothing) 73.53% ▌Luther Bell (Whig) 20.43% ▌Bowen Buckman (Democratic) 6.04%
Massachusetts 8	Tappan Wentworth	Whig	1852	Incumbent lost re-election. Know Nothing gain.	▌Y Chauncey L. Knapp (Know Nothing) 62.80% ▌Tappan Wentworth (Whig) 31.88% ▌Daniel Needham (Democratic) 5.32%
Massachusetts 9	Alexander DeWitt	Free Soil	1852	Incumbent re-elected to a new party. Know Nothing gain.	▌Y Alexander DeWitt (Know Nothing) 76.97% ▌Isaac Davis (Democratic) 13.36% ▌Ira M. Barton (Whig) 7.45% ▌Alfred Mowrey (Independent) 1.42% ▌William P. Marble (Independent) 0.46% Scattering 0.34%
Massachusetts 10	Edward Dickinson	Whig	1852	Incumbent lost re-election. Know Nothing gain.	▌Y Calvin C. Chaffee (Know Nothing) 65.35% ▌Edward Dickinson (Whig) 23.33% ▌Stephen C. Bemis (Democratic) 11.32%
Massachusetts 11	John Z. Goodrich	Whig	1852	Incumbent lost re-election. Know Nothing gain.	▌Y Mark Trafton (Know Nothing) 50.52% ▌John Z. Goodrich (Whig) 30.42% ▌Whiting Griswold (Democratic) 19.06%

Michigan

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Michigan 1	David Stuart	Democratic	1852	Incumbent lost re-election. Republican gain.	▌Y William Alanson Howard (Republican) 53.10% ▌David Stuart (Democratic) 46.90%
Michigan 2	David A. Noble	Democratic	1852	Incumbent lost re-election. Republican gain.	▌Y Henry Waldron (Republican) 57.67% ▌David A. Noble (Democratic) 42.33%
Michigan 3	Samuel Clark	Democratic	1852	Incumbent lost re-election. Republican gain.	▌Y David S. Walbridge (Republican) 44.17% ▌Samuel Clark (Democratic) 55.83%
Michigan 4	Hestor L. Stevens	Democratic	1852	Incumbent retired. Democratic hold.	▌Y George Washington Peck (Democratic) 53.25% ▌Moses Wisner (Republican) 46.75%

Mississippi

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Mississippi 1	Daniel B. Wright	Democratic	1853	Incumbent re-elected.	▌Y Daniel B. Wright (Democratic) 55.5% ▌J. H. Taylor (Know Nothing) 44.5%
Mississippi 2	William S. Barry	Democratic	1853	Incumbent retired to run for state representative. Democratic hold.	▌Y Hendley S. Bennett (Democratic) 51.6% ▌L. E. Houston (Know Nothing) 48.4%
Mississippi 3	William Barksdale Redistricted from the at-large district	Democratic	1853	Incumbent re-elected.	▌Y William Barksdale (Democratic) 55.5% ▌Joseph B. Cobb (Know Nothing) 44.5%
Mississippi 4	Otho R. Singleton Redistricted from the 3rd district	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y William A. Lake (Know Nothing) 50.8% ▌Otho R. Singleton (Democratic) 49.2%
Mississippi 5	None (New seat)			New seat. Democratic gain.	▌Y John A. Quitman (Democratic) 59.4% ▌Giles M. Hillyer (Know Nothing) 40.6%

Missouri

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Missouri 1	Thomas Hart Benton	Democratic	1852	Incumbent lost re-election. Whig gain.	▌Y Luther M. Kennett (Whig) 54.16% ▌Thomas Hart Benton (Benton Democratic) 45.84%
Missouri 2	Alfred W. Lamb	Democratic	1852	Incumbent retired. Whig gain.	▌Y Gilchrist Porter (Whig) 54.14% ▌Tully Cornick (Benton Democratic) 45.86%
Missouri 3	James J. Lindley	Whig	1852	Incumbent re-elected.	▌Y James J. Lindley (Whig) 52.46% ▌Augustus W. Fournoy (Democratic) 47.54%
Missouri 4	Mordecai Oliver	Whig	1852	Incumbent re-elected.	▌Y Mordecai Oliver (Whig) 41.95% ▌S.L. Leonard (Democratic) 34.21% ▌Shelton J. Howe (Benton Democratic) 19.08% ▌J. F. Pitt (Ind. Whig) 4.76%
Missouri 5	John G. Miller	Whig	1850	Incumbent re-elected.	▌Y John G. Miller (Whig) 46.12% ▌Thomas L. Price (Benton Democratic) 35.50% ▌Warwick Hough (Democratic) 18.38%
Missouri 6	John S. Phelps	Democratic	1844	Incumbent re-elected.	▌Y John S. Phelps (Democratic) 51.10% ▌Waldo P. Johnson (Benton Democratic) 48.90%
Missouri 7	Samuel Caruthers	Whig	1852	Incumbent re-elected.	▌Y Samuel Caruthers (Whig) 58.85% ▌Charles Jones (Democratic) 41.15%

New Hampshire

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
New Hampshire 1	George W. Kittredge	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y James Pike (Know Nothing) ▌George W. Kittredge (Democratic) [data missing]
New Hampshire 2	George W. Morrison	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Mason Tappan (Know Nothing) ▌George W. Morrison (Democratic) [data missing]
New Hampshire 3	Harry Hibbard	Democratic	1849	Incumbent retired. Know Nothing gain.	▌Y Aaron H. Cragin (Know Nothing) [data missing]

New Jersey

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
New Jersey 1	Nathan T. Stratton	Democratic	1850	Incumbent retired. Whig gain.	▌Y Isaiah D. Clawson (Whig) 42.94% ▌Thomas W. Mulford (Democratic) 30.02% ▌John W. Hazelton (Temperance) 27.05%
New Jersey 2	Charles Skelton	Democratic	1850	Incumbent retired. Whig gain.	▌Y George R. Robbins (Whig) 57.56% ▌Nathaniel S. Rue (Democratic) 42.44%
New Jersey 3	Samuel Lilly	Democratic	1852	Incumbent lost re-election. Whig gain.	▌Y James Bishop (Whig) 54.35% ▌Samuel Lilly (Democratic) 45.65%
New Jersey 4	George Vail	Democratic	1852	Incumbent re-elected.	▌Y George Vail (Democratic) 51.65% ▌Peter Osborne (Anti-Nebraska) 48.35%
New Jersey 5	Alexander C. M. Pennington	Whig	1852	Incumbent re-elected.	▌Y Alexander C. M. Pennington (Whig) 54.42% ▌John Darcy (Democratic) 45.58%

New York

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
New York 1	James Maurice	Democratic	1852	Incumbent retired. Know Nothing gain.	▌Y William Valk (Know Nothing) 31.19% ▌Daniel B. Allen (Hard Shell Democratic) 20.49% ▌Harvey W. Vail (Whig) 19.81% ▌Frederick Lord (Soft Shell Democratic) 16.48% ▌Gabriel P. Disosway (Temperance) 11.40%
New York 2	Thomas W. Cumming	Democratic	1852	Incumbent retired. Whig gain.	▌Y James S. T. Stranahan (Whig) 50.98% ▌George Taylor (Democratic) 49.02%
New York 3	Hiram Walbridge	Democratic	1852	Incumbent retired. Whig gain.	▌Y Guy R. Pelton (Whig) 49.06% ▌George D. Clinton (Hard Shell Democratic) 30.70% ▌William Miner (Soft Shell Democratic) 20.24%
New York 4	Michael Walsh	Democratic	1852	Incumbent lost re-election. Democratic hold.	▌Y John Kelly (Soft Shell Democratic) 40.54% ▌Michael Walsh (Hard Shell Democratic) 40.30% ▌Sanford L. Macomber (Whig) 10.89% ▌John W. Boyce (Know Nothing) 8.27%
New York 5	William M. Tweed	Democratic	1852	Incumbent retired. Know Nothing gain.	▌Y Thomas R. Whitney (Know Nothing) 30.86% ▌George H. Andrews (Whig) 25.71% ▌Phillip Hamilton (Hard Shell Democratic) 25.27% ▌Abraham J. Berry (Soft Shell Democratic) 18.16%
New York 6	John Wheeler	Democratic	1852	Incumbent re-elected.	▌Y John Wheeler (Hard Shell Democratic) 51.58% ▌John M. Murphy (Soft Shell Democratic) 25.61% ▌Charles H. Marshall (Whig) 22.81%
New York 7	William A. Walker	Democratic	1852	Incumbent retired. Whig gain.	▌Y Thomas Child Jr. (Whig) 56.29% ▌William D. Kennedy (Democratic) 43.71%
New York 8	Francis B. Cutting	Democratic	1852	Incumbent retired. Whig gain.	▌Y Abram Wakeman (Whig) 51.87% ▌James L. Curtis (Hard Shell Democratic) 32.52% ▌Edward B. Fellows (Soft Shell Democratic) 15.61%
New York 9	Jared V. Peck	Democratic	1852	Incumbent lost re-election. Whig gain.	▌Y Bayard Clarke (Whig) 59.56% ▌Benjamin Brandreth (Hard Shell Democratic) 19.64% ▌James R. Whiting (Hard Shell Democratic) 15.04% ▌Jared V. Peck (Anti-Nebraska Democratic) 2.95% ▌Benjamin V. Bailey (Independent) 2.82%
New York 10	William Murray	Democratic	1850	Incumbent retired. Whig gain.	▌Y Ambrose S. Murray (Whig) 44.05% ▌Charles S. Woodworth (Hard Shell Democratic) 38.59% ▌Jonathan Stratton (Soft Shell Democratic) 17.36%
New York 11	Theodoric R. Westbrook	Democratic	1852	Incumbent retired. Whig gain.	▌Y Rufus H. King (Whig) 62.98% ▌Elisha P. Strong (Democratic) 37.03%
New York 12	Isaac Teller	Whig	1854 (special)	Incumbent retired. Whig hold.	▌Y Killian Miller (Whig) 51.07% ▌Hugh McClelland (Soft Shell Democratic) 33.78% ▌William H. Wilson (Hard Shell Democratic) 15.16%
New York 13	Russell Sage	Whig	1852	Incumbent re-elected.	▌Y Russell Sage (Whig) 63.22% ▌Henry A. Clum (Soft Shell Democratic) 18.86% ▌Alanson Cook (Hard Shell Democratic) 17.92%
New York 14	Rufus W. Peckham	Democratic	1852	Incumbent retired. Whig gain.	▌Y Samuel Dickson (Whig) 30.91% ▌John W. Harcourt (Know Nothing) 28.45% ▌John V. L. Pruyn (Soft Shell Democratic) 25.62% ▌Hamilton David (Hard Shell Democratic) 15.03%
New York 15	Charles Hughes	Democratic	1852	Incumbent lost re-election. Whig gain.	▌Y Edward Dodd (Whig) 37.57% ▌Orville Clark (Hard Shell Democratic) 35.34% ▌Charles Hughes (Soft Shell Democratic) 13.73% ▌James M. Andrews (Temperance) 13.36%
New York 16	George A. Simmons	Whig	1852	Incumbent re-elected.	▌Y George A. Simmons (Whig) 48.18% ▌Jerome B. Bailey (Know Nothing) 27.06% ▌Gorton T. Thomas (Soft Shell Democratic) 15.02% ▌Joseph R. Flanders (Hard Shell Democratic) 9.75%
New York 17	Bishop Perkins	Democratic	1852	Incumbent retired. Democratic hold.	▌Y Francis E. Spinner (Soft Shell Democratic) 50.62% ▌Henry P. Alexander (Whig) 36.00% ▌Nathaniel S. Benton (Hard Shell Democratic) 13.38%
New York 18	Peter Rowe	Democratic	1852	Incumbent retired. Whig gain.	▌Y Thomas R. Horton (Whig) 51.32% ▌Isaac Jackson (Democratic) 48.68%
New York 19	George W. Chase	Whig	1852	Incumbent retired. Whig hold.	▌Y Jonas A. Hughston (Whig) 43.25% ▌Lewis R. Palmer (Soft Shell Democratic) 41.33% ▌William B. Hawes (Free Soil) 8.59% ▌Hezekiah Sturgis (Hard Shell Democratic) 6.84%
New York 20	Orsamus B. Matteson	Whig	1848 1850 (retired) 1852	Incumbent re-elected.	▌Y Orsamus B. Matteson (Whig) 38.16% ▌William C. Johnson (Soft Shell Democratic) 30.40% ▌Benjamin N. Huntington (Independent Whig) 27.98% ▌Nasman W. Moore (Soft Shell Democratic) 3.46%
New York 21	Henry Bennett	Whig	1848	Incumbent re-elected.	▌Y Henry Bennett (Whig) 56.03% ▌Edward Tompkins (Hard Shell Democratic) 32.04% ▌Oliver C. Crocker (Soft Shell Democratic) 11.93%
New York 22	Gerrit Smith	Free Soil	1852	Incumbent resigned August 7, 1854. Whig gain.	▌Y Andrew Z. McCarty (Whig) 32.19% ▌Leander Babcock (Soft Shell Democratic) 27.50% ▌Charles G. Case (Free Soil) 21.24% ▌William Lewis (Hard Shell Democratic) 19.08%
New York 23	Caleb Lyon	Independent	1852	Incumbent retired. Whig gain.	▌Y William A. Gilbert (Whig) 46.35% ▌Willard Ives (Soft Shell Democratic) 41.86% ▌Lysander Brown (Hard Shell Democratic) 11.22% ▌Reuben Goodale (Abolition) 0.58%
New York 24	Daniel T. Jones	Democratic	1850	Incumbent retired. Whig gain.	▌Y Amos P. Granger (Whig) 37.50% ▌Thomas G. Alvord (Soft Shell Democratic) 32.08% ▌B. Davis Noxon (Know Nothing) 26.62% ▌Sanford Parker (Hard Shell Democratic) 3.80%
New York 25	Edwin B. Morgan	Whig	1850	Incumbent re-elected.	▌Y Edwin B. Morgan (Whig) 48.35% ▌George H. Middleton (Soft Shell Democratic) 43.50% ▌William F. Aldrich (Hard Shell Democratic) 8.15%
New York 26	Andrew Oliver	Democratic	1852	Incumbent re-elected.	▌Y Andrew Oliver (Soft Shell Democratic) 47.74% ▌James M. Seeley (Whig) 37.06% ▌Thomas M. Howell (Hard Shell Democratic) 15.20%
New York 27	John J. Taylor	Democratic	1852	Incumbent retired. Whig gain.	▌Y John M. Parker (Whig) 61.27% ▌John G. McDowell (Soft Shell Democratic) 26.45% ▌Stephen B. Cushing (Hard Shell Democratic) 12.28%
New York 28	George Hastings	Democratic	1852	Incumbent lost re-election. Whig gain.	▌Y William H. Kelsey (Whig) 68.90% ▌George Hastings (Soft Shell Democratic) 27.72% ▌Leman Gibbs (Hard Shell Democratic) 3.38%
New York 29	Davis Carpenter	Whig	1852	Incumbent lost re-election. Democratic gain.	▌Y John Williams (Soft Shell Democratic) 47.94% ▌Davis Carpenter (Whig) 36.13% ▌Joseph Sibley (Hard Shell Democratic) 15.94%
New York 30	Benjamin Pringle	Whig	1852	Incumbent re-elected.	▌Y Benjamin Pringle (Whig) 57.59% ▌Albert P. Laning (Soft Shell Democratic) 23.62% ▌Charles W. Belden (Hard Shell Democratic) 14.60% ▌Nathan V. Hull (Free Soil) 4.19%
New York 31	Thomas T. Flagler	Whig	1852	Incumbent re-elected.	▌Y Thomas T. Flagler (Whig) 76.63% ▌Alden S. Blair (Democratic) 13.12% ▌Edward J. Chase (Free Soil) 10.25%
New York 32	Solomon G. Haven	Whig	1850	Incumbent re-elected.	▌Y Solomon G. Haven (Whig) 59.21% ▌Israel T. Hatch (Soft Shell Democratic) 35.15% ▌Nelson Randall (Hard Shell Democratic) 5.64%
New York 33	Reuben Fenton	Democratic	1852	Incumbent lost re-election. Know Nothing gain.	▌Y Francis S. Edwards (Know Nothing) 55.49% ▌Reuben Fenton (Soft Shell Democratic) 42.47% ▌Ebenezer A. Lester (Hard Shell Democratic) 1.64% ▌George W. Patterson (Whig) 0.40%

North Carolina

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
North Carolina 1	Henry M. Shaw	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Robert Treat Paine (Know Nothing) 51.71% ▌Henry M. Shaw (Democratic) 48.29%
North Carolina 2	Thomas Hart Ruffin	Democratic	1853	Incumbent re-elected.	▌Y Thomas Hart Ruffin (Democratic) 66.05% ▌Thomas J. Latham (Know Nothing) 33.95%
North Carolina 3	William S. Ashe	Democratic	1849	Incumbent retired. Democratic hold.	▌Y Warren Winslow (Democratic) 54.94% ▌David Reid (Know Nothing) 45.06%
North Carolina 4	Sion H. Rogers	Whig	1853	Incumbent retired. Democratic gain.	▌Y Lawrence O'Bryan Branch (Democratic) 61.67% ▌James B. Shepard (Know Nothing) 38.33%
North Carolina 5	John Kerr Jr.	Whig	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Edwin Godwin Reade (Know Nothing) 65.28% ▌John Kerr Jr. (Whig) 34.72%
North Carolina 6	Richard C. Puryear	Whig	1853	Incumbent re-elected.	▌Y Richard C. Puryear (Whig) 51.44% ▌Alfred Moore Scales (Democratic) 48.56%
North Carolina 7	F. Burton Craige	Democratic	1853	Incumbent re-elected.	▌Y F. Burton Craige (Democratic) 62.17% ▌Samuel N. Stowe (Know Nothing) 37.83%
North Carolina 8	Thomas L. Clingman	Democratic	1843 1845 (lost) 1847	Incumbent re-elected.	▌Y Thomas L. Clingman (Democratic) 55.10% ▌Leander B. Carmichael (Know Nothing) 44.90%

Ohio

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Ohio 1	David T. Disney	Democratic	1848	Incumbent retired. Anti-Nebraska gain.	▌Y Timothy C. Day (Anti-Nebraska) 63.46% ▌George H. Pendleton (Democratic) 36.54%
Ohio 2	John Scott Harrison	Whig	1852	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y John Scott Harrison (Anti-Nebraska) 66.03% ▌William S. Groesbeck (Democratic) 33.97%
Ohio 3	Lewis D. Campbell	Whig	1848	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y Lewis D. Campbell (Anti-Nebraska) 58.25% ▌Clement Vallandigham (Democratic) 41.75%
Ohio 4	Matthias H. Nichols	Democratic	1852	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y Matthias H. Nichols (Anti-Nebraska) 70.19% ▌G. V. Dorsey (Democratic) 29.81%
Ohio 5	Alfred Edgerton	Democratic	1850	Incumbent retired. Anti-Nebraska gain.	▌Y Richard Mott (Anti-Nebraska) 61.62% ▌Henry S. Cowager (Democratic) 38.38%
Ohio 6	Andrew Ellison	Democratic	1852	Incumbent lost re-election. Anti-Nebraska gain.	▌Y Jonas R. Emrie (Anti-Nebraska) 65.04% ▌Andrew Ellison (Democratic) 34.96%
Ohio 7	Aaron Harlan	Whig	1852	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y Aaron Harlan (Anti-Nebraska) 81.14% ▌Benjamin B. Hinkson (Democratic) 18.86%
Ohio 8	Moses Bledso Corwin	Whig	1852	Incumbent retired. Anti-Nebraska gain.	▌Y Benjamin Stanton (Anti-Nebraska) 75.84% ▌Enoch G. Dial (Democratic) 23.10% ▌J. Newell (Unknown) 1.06%
Ohio 9	Frederick W. Green	Democratic	1850	Incumbent retired. Anti-Nebraska gain.	▌Y Cooper K. Watson (Anti-Nebraska) 59.92% ▌Josiah S. Plants (Democratic) 40.08%
Ohio 10	John L. Taylor	Democratic	1846	Incumbent retired. Anti-Nebraska gain.	▌Y Oscar F. Moore (Anti-Nebraska) 65.32% ▌James W. Davis (Democratic) 34.68%
Ohio 11	Thomas Ritchey	Democratic	1852	Incumbent retired. Anti-Nebraska gain.	▌Y Valentine B. Horton (Anti-Nebraska) 58.70% ▌Lot L. Smith (Democratic) 41.30%
Ohio 12	Edson B. Olds	Democratic	1848	Incumbent lost re-election. Anti-Nebraska gain.	▌Y Samuel Galloway (Anti-Nebraska) 60.28% ▌Edson B. Olds (Democratic) 39.72%
Ohio 13	William D. Lindsley	Democratic	1852	Incumbent lost re-election. Anti-Nebraska gain.	▌Y John Sherman (Anti-Nebraska) 59.80% ▌William D. Lindsley (Democratic) 40.21%
Ohio 14	Harvey H. Johnson	Democratic	1852	Incumbent retired. Anti-Nebraska gain.	▌Y Philemon Bliss (Anti-Nebraska) 59.26% ▌Harvey H. Johnson (Democratic) 40.74%
Ohio 15	William R. Sapp	Whig	1852	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y William R. Sapp (Anti-Nebraska) 58.99% ▌William Dunbar (Democratic) 41.02%
Ohio 16	Edward Ball	Whig	1852	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y Edward Ball (Anti-Nebraska) 58.89% ▌William Galligher (Democratic) 41.11%
Ohio 17	Wilson Shannon	Democratic	1852	Incumbent retired. Anti-Nebraska gain.	▌Y Charles J. Albright (Anti-Nebraska) 58.07% ▌Daniel H. Wire (Democratic) 41.93%
Ohio 18	George Bliss	Democratic	1852	Incumbent retired. Anti-Nebraska gain.	▌Y Benjamin F. Leiter (Anti-Nebraska) 63.36% ▌Ebenezer Spaulding (Democratic) 36.64%
Ohio 19	Edward Wade	Free Soil	1852	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y Edward Wade (Anti-Nebraska) 71.07% ▌Eli T. Wilder (Democratic) 28.42% ▌Irad Kelly (Independent) 0.51%
Ohio 20	Joshua Reed Giddings	Free Soil	1843	Incumbent re-elected to a new party. Anti-Nebraska gain.	▌Y Joshua Reed Giddings (Anti-Nebraska) [data missing]
Ohio 21	Andrew Stuart	Democratic	1848	Incumbent lost re-election. Anti-Nebraska gain.	▌Y John Bingham (Anti-Nebraska) [data missing]

Pennsylvania

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Pennsylvania 1	Thomas B. Florence	Democratic	1848	Incumbent re-elected.	▌Y Thomas B. Florence (Democratic) 51.77% ▌Edward Joy Morris (Whig) 48.23%
Pennsylvania 2	Joseph R. Chandler	Whig	1848	Incumbent lost re-election. Whig hold.	▌Y Job R. Tyson (Whig) 54.63% ▌John Hamilton (Democratic) 33.82% ▌Joseph R. Chandler (Ind. Whig) 11.56%
Pennsylvania 3	John Robbins	Democratic	1848	Incumbent retired. Whig gain.	▌Y William Millward (Whig) 51.59% ▌James Landy (Democratic) 48.41%
Pennsylvania 4	William Henry Witte	Democratic	1852	Incumbent retired. Know Nothing gain.	▌Y Jacob Broom (Know Nothing) 49.63% ▌Henry Myer Phillips (Democratic) 44.08% ▌John Lambert (Whig) 6.29%
Pennsylvania 5	John McNair	Democratic	1850	Incumbent retired. Democratic hold.	▌Y John Cadwalader (Democratic) 50.03% ▌Nathan A. Jones (Whig) 49.97%
Pennsylvania 6	William Everhart	Whig	1852	Incumbent retired. Democratic gain.	▌Y John Hickman (Democratic) 58.97% ▌John M. Broomall (Whig) 41.03%
Pennsylvania 7	Samuel A. Bridges	Democratic	1852	Incumbent lost re-election. Republican gain.	▌Y Samuel C. Bradshaw (Republican) 51.03% ▌Samuel A. Bridges (Democratic) 48.97%
Pennsylvania 8	J. Glancy Jones	Democratic	1854	Incumbent re-elected.	▌Y J. Glancy Jones (Democratic) 59.77% ▌John C. Myers (Whig) 40.23%
Pennsylvania 9	Isaac E. Hiester	Whig	1852	Incumbent lost re-election. Independent gain.	▌Y Anthony E. Roberts (Independent) 39.38% ▌Isaac E. Hiester (Whig) 33.79% ▌Joseph S. Lefevre (Democratic) 26.84%
Pennsylvania 10	Ner Middleswarth	Whig	1852	Incumbent retired. Whig hold.	▌Y John C. Kunkel (Whig) 55.99% ▌Amos Boughter (Democratic) 43.01% ▌George A. Seiler (Independent) 1.00%
Pennsylvania 11	Christian M. Straub	Democratic	1852	Incumbent retired. Whig gain.	▌Y James H. Campbell (Republican) 38.87% ▌William L. Dewart (Democratic) 36.68% ▌Joseph W. Cake (Democratic) 21.90% ▌Kimber Cleaver (Know Nothing) 2.56%
Pennsylvania 12	Hendrick B. Wright	Democratic	1852	Incumbent lost re-election. Whig gain.	▌Y Henry Mills Fuller (Whig) 56.26% ▌Hendrick B. Wright (Democratic) 43.74%
Pennsylvania 13	Asa Packer	Democratic	1852	Incumbent re-elected.	▌Y Asa Packer (Democratic) 58.67% ▌Edward F. Stewart (Whig) 41.33%
Pennsylvania 14	Galusha A. Grow	Democratic	1850	Incumbent re-elected.	▌Y Galusha A. Grow (Democratic) 95.22% ▌Jim Grow (Independent) 4.56% ▌Olin L. Hawley (Independent) 0.23%

Rhode Island

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Rhode Island 1	Thomas Davis	Democratic	1853	Incumbent lost re-election. Know Nothing gain.	▌Y Nathan B. Durfee (Know Nothing) ▌Thomas Davis (Democratic) [data missing]
Rhode Island 2	Benjamin B. Thurston	Democratic	1851	Incumbent re-elected to a new party. Know Nothing gain.	▌Y Benjamin B. Thurston (Know Nothing) [data missing]

South Carolina

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
South Carolina 1	John McQueen	Democratic	1849 (special)	Incumbent re-elected.	▌Y John McQueen (Democratic) 67.44% ▌I. D. Wilson (Unknown) 32.56%
South Carolina 2	William Aiken Jr.	Democratic	1850	Incumbent re-elected.	▌Y William Aiken Jr. (Democratic) 96.44% ▌W. C. Clayton (Unknown) 3.56%
South Carolina 3	Laurence M. Keitt	Democratic	1853	Incumbent re-elected.	▌Y Laurence M. Keitt (Democratic) 100.0% unopposed
South Carolina 4	Preston Brooks	Democratic	1853	Incumbent re-elected.	▌Y Preston Brooks (Democratic) 66.84% ▌A. C. Garlington (Unknown) 33.16%
South Carolina 5	James L. Orr	Democratic	1853	Incumbent re-elected.	▌Y James L. Orr (Democratic) 100.00% unopposed
South Carolina 6	William W. Boyce	Democratic	1853	Incumbent re-elected.	▌Y William W. Boyce (Democratic) 100.0% unopposed

Tennessee

Elections held late, on August 2, 1855.

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Tennessee 1	Nathaniel G. Taylor	Whig	1854 (special)	Incumbent lost re-election as a Know Nothing. Democratic gain.	▌Y Albert G. Watkins (Democratic) 50.32% ▌Nathaniel G. Taylor (Know Nothing) 48.57% ▌A. G. Graham (Unknown) 1.11%
Tennessee 2	William M. Churchwell	Democratic	1851	Incumbent retired. Know Nothing gain.	▌Y William H. Sneed (Know Nothing) 52.15% ▌David H. Cummins (Democratic) 47.85%
Tennessee 3	Samuel A. Smith	Democratic	1853	Incumbent re-elected.	▌Y Samuel A. Smith (Democratic) 51.78% ▌Josiah M. Anderson (Know Nothing) 48.22%
Tennessee 4	William Cullom	Whig	1851	Incumbent lost re-election. Democratic gain.	▌Y John H. Savage (Democratic) 51.96% ▌William Cullom (Know Nothing) 48.04%
Tennessee 5	Charles Ready	Whig	1853	Incumbent re-elected to a new party. Know Nothing gain.	▌Y Charles Ready (Know Nothing) 91.79% ▌Edwin A. Keeble (Democratic) 8.21%
Tennessee 6	George W. Jones	Democratic	1842	Incumbent re-elected.	▌Y George W. Jones (Democratic) 66.63% ▌Powhatan Gordon (Know Nothing) 33.37%
Tennessee 7	Robert M. Bugg	Whig	1853	Incumbent retired. Democratic gain.	▌Y John V. Wright (Democratic) 57.24% ▌William Kendrick (Know Nothing) 42.76%
Tennessee 8	Felix Zollicoffer	Whig	1853	Incumbent re-elected to a new party. Know Nothing gain.	▌Y Felix Zollicoffer (Know Nothing) 58.89% ▌Granville C. Torbett (Democratic) 41.11%
Tennessee 9	Emerson Etheridge	Whig	1853	Incumbent re-elected to a new party. Know Nothing gain.	▌Y Emerson Etheridge (Know Nothing) 51.82% ▌Thomas J. Freeman (Democratic) 48.18%
Tennessee 10	Frederick P. Stanton	Democratic	1845	Incumbent retired. Know Nothing gain.	▌Y Thomas Rivers (Know Nothing) 53.29% ▌David M. Currin (Democratic) 46.71%

Texas

District	Incumbent			This race
	Member	Party	First elected	Results	Candidates
Texas 1	George W. Smyth	Democratic	1853	Incumbent retired. Know Nothing gain.	▌