1948 United States House of Representatives elections
The 1948 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 81st United States Congress. They were held for the most part on November 2, 1948, while Maine held theirs on September 13. These elections coincided with President Harry S. Truman's election to a full term. Truman had campaigned against a "do-nothing"' Republican Party Congress that had opposed his initiatives and was seen as counterproductive. The Democratic Party regained control of both the House and Senate in this election. For Democrats, this was their largest gain since 1932.
These were the last elections until 1980 when a member of a political party other than the Democrats, Republicans, or an independent had one or more seats in the chamber. To date, this is the last time the Democrats gained more than 50 seats in a U.S. House election.
Special elections
Sorted by election date, then by district.Alabama
| District | Incumbent | Party | First elected | Result | Candidates |
| Frank W. Boykin | Democratic | 1935 | Incumbent re-elected. | ||
| George M. Grant | Democratic | 1938 | Incumbent re-elected. | ||
| George W. Andrews | Democratic | 1944 | Incumbent re-elected. | ||
| Sam Hobbs | Democratic | 1934 | Incumbent re-elected. | ||
| Albert Rains | Democratic | 1944 | Incumbent re-elected. | ||
| Pete Jarman | Democratic | 1936 | Incumbent lost renomination. Democratic hold. | ||
| Carter Manasco | Democratic | 1941 | Incumbent lost renomination. Democratic hold. | ||
| Robert E. Jones Jr. | Democratic | 1947 | Incumbent re-elected. | ||
| Laurie C. Battle | Democratic | 1946 | Incumbent re-elected. |
Arizona
| District | Incumbent | Party | First elected | Result | Candidates |
| John R. Murdock | Democratic | 1936 | Incumbent re-elected. | ||
| Richard F. Harless | Democratic | 1942 | Incumbent retired to run for Governor of Arizona. Democratic hold. |
Arkansas
| District | Incumbent | Party | First elected | Result | Candidates |
| Ezekiel C. Gathings | Democratic | 1938 | Incumbent re-elected. | ||
| Wilbur Mills | Democratic | 1938 | Incumbent re-elected. | ||
| James William Trimble | Democratic | 1944 | Incumbent re-elected. | ||
| William Fadjo Cravens | Democratic | 1939 | Incumbent retired. Democratic hold. | ||
| Brooks Hays | Democratic | 1942 | Incumbent re-elected. | ||
| William F. Norrell | Democratic | 1938 | Incumbent re-elected. | ||
| Oren Harris | Democratic | 1940 | Incumbent re-elected. |
California
| District | Incumbent | Party | First elected | Result | Candidates |
| Clarence F. Lea | Democratic | 1916 | Incumbent retired. Republican gain. | ||
| Clair Engle | Democratic | 1943 | Incumbent re-elected. | ||
| J. Leroy Johnson | Republican | 1942 | Incumbent re-elected. | ||
| Franck R. Havenner | Democratic | 1944 | Incumbent re-elected. | ||
| Richard J. Welch | Republican | 1926 | Incumbent re-elected. | ||
| George P. Miller | Democratic | 1944 | Incumbent re-elected. | ||
| John J. Allen Jr. | Republican | 1946 | Incumbent re-elected. | ||
| Jack Z. Anderson | Republican | 1938 | Incumbent re-elected. | ||
| Bertrand W. Gearhart | Republican | 1934 | Incumbent lost re-election. Democratic gain. | ||
| Alfred J. Elliott | Democratic | 1937 | Incumbent retired. Republican gain. | ||
| Ernest K. Bramblett | Republican | 1946 | Incumbent re-elected. | ||
| Richard Nixon | Republican | 1946 | Incumbent re-elected. | ||
| Norris Poulson | Republican | 1946 | Incumbent re-elected. | ||
| Helen Gahagan Douglas | Democratic | 1944 | Incumbent re-elected. | ||
| Gordon L. McDonough | Republican | 1944 | Incumbent re-elected. | ||
| Donald L. Jackson | Republican | 1946 | Incumbent re-elected. | ||
| Cecil R. King | Democratic | 1942 | Incumbent re-elected. | ||
| Willis W. Bradley | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Chet Holifield | Democratic | 1942 | Incumbent re-elected. | ||
| John Carl Hinshaw | Republican | 1938 | Incumbent re-elected. | ||
| Harry R. Sheppard | Democratic | 1936 | Incumbent re-elected. | ||
| John Phillips | Republican | 1942 | Incumbent re-elected. | ||
| Charles K. Fletcher | Republican | 1946 | Incumbent lost re-election. Democratic gain. |
Colorado
| District | Incumbent | Party | First elected | Result | Candidates |
| John A. Carroll | Democratic | 1946 | Incumbent re-elected. | ||
| William S. Hill | Republican | 1940 | Incumbent re-elected. | ||
| John Chenoweth | Republican | 1940 | Incumbent lost re-election. Democratic gain. | ||
| Robert F. Rockwell | Republican | 1941 (special) | Incumbent lost re-election. Democratic gain. |
Connecticut
| District | Incumbent | Party | First elected | Result | Candidates |
| William J. Miller | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Horace Seely-Brown Jr. | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Ellsworth Foote | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| John Davis Lodge | Republican | 1946 | Incumbent re-elected. | ||
| James T. Patterson | Republican | 1946 | Incumbent re-elected. | ||
| Antoni Sadlak | Republican | 1946 | Incumbent re-elected. |
Delaware
| District | Incumbent | Party | First elected | Result | Candidates |
| J. Caleb Boggs | Republican | 1946 | Incumbent re-elected. |
Florida
| District | Incumbent | Party | First elected | Result | Candidates |
| J. Hardin Peterson | Democratic | 1932 | Incumbent re-elected. | ||
| Emory H. Price | Democratic | 1942 | Incumbent lost renomination. Democratic hold. | ||
| Bob Sikes | Democratic | 1940 1944 1974 | Incumbent re-elected. | ||
| George Smathers | Democratic | 1946 | Incumbent re-elected. | ||
| Joe Hendricks | Democratic | 1936 | Incumbent retired. Democratic hold. | ||
| Dwight L. Rogers | Democratic | 1944 | Incumbent re-elected. |
Georgia
| District | Incumbent | Party | First elected | Result | Candidates |
| Prince Hulon Preston Jr. | Democratic | 1946 | Incumbent re-elected. | ||
| E. Eugene Cox | Democratic | 1924 | Incumbent re-elected. | ||
| Stephen Pace | Democratic | 1936 | Incumbent re-elected. | ||
| A. Sidney Camp | Democratic | 1939 | Incumbent re-elected. | ||
| James C. Davis | Democratic | 1946 | Incumbent re-elected. | ||
| Carl Vinson | Democratic | 1914 | Incumbent re-elected. | ||
| Henderson L. Lanham | Democratic | 1946 | Incumbent re-elected. | ||
| William M. Wheeler | Democratic | 1946 | Incumbent re-elected. | ||
| John Stephens Wood | Democratic | 1944 | Incumbent re-elected. | ||
| Paul Brown | Democratic | 1933 | Incumbent re-elected. |
Idaho
| District | Incumbent | Party | First elected | Result | Candidates |
| Abe Goff | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| John C. Sanborn | Republican | 1946 | Incumbent re-elected. |
Illinois
Illinois redistricted its at-large seat into an additional geographical district for a total of 26, changing boundaries across the state and moving several seats from downstate into the Chicago suburbs.Indiana
| District | Incumbent | Party | First elected | Result | Candidates |
| Ray Madden | Democratic | 1942 | Incumbent re-elected. | ||
| Charles A. Halleck | Republican | 1935 | Incumbent re-elected. | ||
| Robert A. Grant | Republican | 1938 | Incumbent lost re-election. Democratic gain. | ||
| George W. Gillie | Republican | 1938 | Incumbent lost re-election. Democratic gain. | ||
| Forest Harness | Republican | 1938 | Incumbent lost re-election. Democratic gain. | ||
| Noble J. Johnson | Republican | 1938 | Incumbent resigned when appointed to the CCPA. Republican hold. | ||
| Gerald W. Landis | Republican | 1938 | Incumbent lost re-election. Democratic gain. | ||
| E. A. Mitchell | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Earl Wilson | Republican | 1940 | Incumbent re-elected. | ||
| Ralph Harvey | Republican | 1947 | Incumbent re-elected. | ||
| Louis Ludlow | Democratic | 1928 | Incumbent retired. Democratic hold. |
Iowa
| District | Incumbent | Party | First elected | Result | Candidates |
| Thomas E. Martin | Republican | 1938 | Incumbent re-elected. | ||
| Henry O. Talle | Republican | 1938 | Incumbent re-elected. | ||
| John W. Gwynne | Republican | 1934 | Incumbent lost renomination. Republican hold. | ||
| Karl M. LeCompte | Republican | 1938 | Incumbent re-elected. | ||
| Paul Cunningham | Republican | 1940 | Incumbent re-elected. | ||
| James I. Dolliver | Republican | 1944 | Incumbent re-elected. | ||
| Ben F. Jensen | Republican | 1938 | Incumbent re-elected. | ||
| Charles B. Hoeven | Republican | 1942 | Incumbent re-elected. |
Kansas
| District | Incumbent | Party | First elected | Result | Candidates |
| Albert M. Cole | Republican | 1944 | Incumbent re-elected. | ||
| Errett P. Scrivner | Republican | 1943 (special) | Incumbent re-elected. | ||
| Herbert A. Meyer | Republican | 1946 | Incumbent re-elected. | ||
| Edward H. Rees | Republican | 1936 | Incumbent re-elected. | ||
| Clifford R. Hope | Republican | 1926 | Incumbent re-elected. | ||
| Wint Smith | Republican | 1946 | Incumbent re-elected. |
Kentucky
| District | Incumbent | Party | First elected | Result | Candidates |
| Noble Jones Gregory | Democratic | 1936 | Incumbent re-elected. | ||
| John A. Whitaker | Democratic | 1948 | Incumbent re-elected. | ||
| Thruston Ballard Morton | Republican | 1946 | Incumbent re-elected. | ||
| Frank Chelf | Democratic | 1944 | Incumbent re-elected. | ||
| Brent Spence | Democratic | 1930 | Incumbent re-elected. | ||
| Virgil Chapman | Democratic | 1930 | Incumbent retired to run for U.S. senator. Democratic hold. | ||
| Wendell H. Meade | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Joe B. Bates | Democratic | 1930 | Incumbent re-elected. | ||
| William Lewis | Republican | 1948 | Incumbent retired. Republican hold. |
Louisiana
| District | Incumbent | Party | First elected | Result | Candidates |
| F. Edward Hébert | Democratic | 1940 | Incumbent re-elected. | ||
| Hale Boggs | Democratic | 1940 1942 1946 | Incumbent re-elected. | ||
| James R. Domengeaux | Democratic | 1940 | Incumbent retired to run for U.S. senator. Democratic hold. | ||
| Overton Brooks | Democratic | 1936 | Incumbent re-elected. | ||
| Otto Passman | Democratic | 1946 | Incumbent re-elected. | ||
| James H. Morrison | Democratic | 1942 | Incumbent re-elected. | ||
| Henry D. Larcade Jr. | Democratic | 1942 | Incumbent re-elected. | ||
| A. Leonard Allen | Democratic | 1936 | Incumbent re-elected. |
Maine
| District | Incumbent | Party | First elected | Result | Candidates |
| Robert Hale | Republican | 1942 | Incumbent re-elected. | ||
| Margaret Chase Smith | Republican | 1940 | Incumbent retired to run for U.S. senator. Republican hold. | ||
| Frank Fellows | Republican | 1940 | Incumbent re-elected. |
Maryland
| District | Incumbent | Party | First elected | Result | Candidates |
| Edward Tylor Miller | Republican | 1946 | Incumbent re-elected. | ||
| Hugh Meade | Democratic | 1946 | Incumbent lost renomination. Democratic hold. | ||
| Edward Garmatz | Democratic | 1947 | Incumbent re-elected. | ||
| George Hyde Fallon | Democratic | 1944 | Incumbent re-elected. | ||
| Lansdale Sasscer | Democratic | 1939 | Incumbent re-elected. | ||
| J. Glenn Beall | Republican | 1942 | Incumbent re-elected. |
Massachusetts
| District | Incumbent | Party | First elected | Result | Candidates |
| John W. Heselton | Republican | 1944 | Incumbent re-elected. | ||
| Charles R. Clason | Republican | 1936 | Incumbent lost re-election. Democratic gain. | ||
| Philip J. Philbin | Democratic | 1942 | Incumbent re-elected. | ||
| Harold Donohue | Democratic | 1946 | Incumbent re-elected. | ||
| Edith Nourse Rogers | Republican | 1925 | Incumbent re-elected. | ||
| George J. Bates | Republican | 1936 | Incumbent re-elected. | ||
| Thomas J. Lane | Democratic | 1941 | Incumbent re-elected. | ||
| Angier Goodwin | Republican | 1942 | Incumbent re-elected. | ||
| Donald W. Nicholson | Republican | 1947 | Incumbent re-elected. | ||
| Christian Herter | Republican | 1942 | Incumbent re-elected. | ||
| John F. Kennedy | Democratic | 1946 | Incumbent re-elected. | ||
| John W. McCormack | Democratic | 1928 | Incumbent re-elected. | ||
| Richard B. Wigglesworth | Republican | 1928 | Incumbent re-elected. | ||
| Joseph W. Martin Jr. | Republican | 1924 | Incumbent re-elected. |
Michigan
| District | Incumbent | Party | First elected | Result | Candidates |
| George G. Sadowski | Democratic | 1942 | Incumbent re-elected. | ||
| Earl C. Michener | Republican | 1934 | Incumbent re-elected. | ||
| Paul W. Shafer | Republican | 1936 | Incumbent re-elected. | ||
| Clare E. Hoffman | Republican | 1934 | Incumbent re-elected. | ||
| Bartel J. Jonkman | Republican | 1940 | Incumbent lost renomination. Republican hold. | ||
| William W. Blackney | Republican | 1938 | Incumbent re-elected. | ||
| Jesse P. Wolcott | Republican | 1930 | Incumbent re-elected. | ||
| Fred L. Crawford | Republican | 1934 | Incumbent re-elected. | ||
| Albert J. Engel | Republican | 1934 | Incumbent re-elected. | ||
| Roy O. Woodruff | Republican | 1920 | Incumbent re-elected. | ||
| Charles E. Potter | Republican | 1947 | Incumbent re-elected. | ||
| John B. Bennett | Republican | 1946 | Incumbent re-elected. | ||
| Howard A. Coffin | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Harold F. Youngblood | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| John Dingell Sr. | Democratic | 1932 | Incumbent re-elected. | ||
| John Lesinski Sr. | Democratic | 1932 | Incumbent re-elected. | ||
| George A. Dondero | Republican | 1932 | Incumbent re-elected. |
Minnesota
| District | Incumbent | Party | First elected | Result | Candidates |
| August H. Andresen | Republican | 1934 | Incumbent re-elected. | ||
| Joseph P. O'Hara | Republican | 1940 | Incumbent re-elected. | ||
| George MacKinnon | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Edward Devitt | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Walter Judd | Republican | 1942 | Incumbent re-elected. | ||
| Harold Knutson | Republican | 1934 | Incumbent lost re-election. Democratic gain. | ||
| Herman Carl Andersen | Republican | 1938 | Incumbent re-elected. | ||
| John Blatnik | Democratic | 1946 | Incumbent re-elected. | ||
| Harold Hagen | Republican | 1944 | Incumbent re-elected. |
Mississippi
| District | Incumbent | Party | First elected | Result | Candidates |
| John E. Rankin | Democratic | 1920 | Incumbent re-elected. | ||
| Jamie Whitten | Democratic | 1941 | Incumbent re-elected. | ||
| William Madison Whittington | Democratic | 1924 | Incumbent re-elected. | ||
| Thomas Abernethy | Democratic | 1942 | Incumbent re-elected. | ||
| W. Arthur Winstead | Democratic | 1942 | Incumbent re-elected. | ||
| William M. Colmer | Democratic | 1932 | Incumbent re-elected. | ||
| John Bell Williams | Democratic | 1946 | Incumbent re-elected. |
Missouri
| District | Incumbent | Party | First elected | Result | Candidates |
| Samuel W. Arnold | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Max Schwabe | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| William Clay Cole | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| C. Jasper Bell | Democratic | 1934 | Incumbent retired. Democratic hold. | ||
| Albert L. Reeves Jr. | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Marion T. Bennett | Republican | 1943 | Incumbent lost re-election. Democratic gain. | ||
| Dewey Short | Republican | 1934 | Incumbent re-elected. | ||
| Parke M. Banta | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Clarence Cannon | Democratic | 1922 | Incumbent re-elected. | ||
| Orville Zimmerman | Democratic | 1934 | Incumbent died April 7, 1948. Democratic hold. Winner also elected to finish the current term; [|see above]. | ||
| Claude I. Bakewell | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Walter C. Ploeser | Republican | 1940 | Incumbent lost re-election. Democratic gain. | ||
| Frank M. Karsten | Democratic | 1946 | Incumbent re-elected. |
Montana
| District | Incumbent | Party | First elected | Result | Candidates |
| Mike Mansfield | Democratic | 1942 | Incumbent re-elected. | ||
| Wesley A. D'Ewart | Republican | 1945 | Incumbent re-elected. |
Nebraska
| District | Incumbent | Party | First elected | Result | Candidates |
| Carl Curtis | Republican | 1938 | Incumbent re-elected. | ||
| Howard Buffett | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Karl Stefan | Republican | 1934 | Incumbent re-elected. | ||
| Arthur L. Miller | Republican | 1942 | Incumbent re-elected. |
Nevada
| District | Incumbent | Party | First elected | Result | Candidates |
| Charles H. Russell | Republican | 1946 | Incumbent lost re-election. Democratic gain. |
New Hampshire
| District | Incumbent | Party | First elected | Result | Candidates |
| Chester Earl Merrow | Republican | 1942 | Incumbent re-elected. | ||
| Norris Cotton | Republican | 1946 | Incumbent re-elected. |
New Jersey
| District | Incumbent | Party | First elected | Result | Candidates |
| Charles A. Wolverton | Republican | 1926 | Incumbent re-elected. | ||
| T. Millet Hand | Republican | 1944 | Incumbent re-elected. | ||
| James C. Auchincloss | Republican | 1942 | Incumbent re-elected. | ||
| Frank A. Mathews Jr. | Republican | 1945 (special) | Incumbent retired. Democratic gain. | ||
| Charles A. Eaton | Republican | 1924 | Incumbent re-elected. | ||
| Clifford P. Case | Republican | 1944 | Incumbent re-elected. | ||
| J. Parnell Thomas | Republican | 1936 | Incumbent re-elected. | ||
| Gordon Canfield | Republican | 1940 | Incumbent re-elected. | ||
| Harry L. Towe | Republican | 1942 | Incumbent re-elected. | ||
| Fred A. Hartley Jr. | Republican | 1928 | Incumbent retired. Democratic gain. | ||
| Frank Sundstrom | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Robert Kean | Republican | 1938 | Incumbent re-elected. | ||
| Mary Teresa Norton | Democratic | 1924 | Incumbent re-elected. | ||
| Edward J. Hart | Democratic | 1934 | Incumbent re-elected. |
New Mexico
| District | Incumbent | Party | First elected | Result | Candidates |
| Antonio M. Fernández | Democratic | 1942 | Incumbent re-elected. | ||
| Georgia Lee Lusk | Democratic | 1946 | Incumbent lost renomination. Democratic hold. |
New York
| District | Incumbent | Party | First elected | Result | Candidates |
| W. Kingsland Macy | Republican | 1946 | Incumbent re-elected. | ||
| Leonard W. Hall | Republican | 1938 | Incumbent re-elected. | ||
| Henry J. Latham | Republican | 1944 | Incumbent re-elected. | ||
| Gregory McMahon | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Robert Tripp Ross | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Robert Nodar Jr. | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| John J. Delaney | Democratic | 1931 | Incumbent re-elected. | ||
| Joseph L. Pfeifer | Democratic | 1934 | Incumbent re-elected. | ||
| Eugene James Keogh | Democratic | 1936 | Incumbent re-elected. | ||
| Andrew Lawrence Somers | Democratic | 1924 | Incumbent re-elected. | ||
| James J. Heffernan | Democratic | 1940 | Incumbent re-elected. | ||
| John J. Rooney | Democratic | 1944 | Incumbent re-elected. | ||
| Donald L. O'Toole | Democratic | 1936 | Incumbent re-elected. | ||
| Abraham J. Multer | Democratic | 1947 | Incumbent re-elected. | ||
| Emanuel Celler | Democratic | 1922 | Incumbent re-elected. | ||
| Ellsworth B. Buck | Republican | 1944 | Incumbent retired. Democratic gain. | ||
| Frederic René Coudert Jr. | Republican | 1946 | Incumbent re-elected. | ||
| Vito Marcantonio | American Labor | 1938 | Incumbent re-elected. | ||
| Arthur George Klein | Democratic | 1946 | Incumbent re-elected. | ||
| Sol Bloom | Democratic | 1923 | Incumbent re-elected. | ||
| Jacob K. Javits | Republican | 1946 | Incumbent re-elected. | ||
| Adam Clayton Powell Jr. | Democratic | 1944 | Incumbent re-elected. | ||
| Walter A. Lynch | Democratic | 1940 | Incumbent re-elected. | ||
| Leo Isacson | American Labor | 1948 (special) | Incumbent lost re-election. Democratic gain. | ||
| Charles A. Buckley | Democratic | 1934 | Incumbent re-elected. | ||
| David M. Potts | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Ralph W. Gwinn | Republican | 1944 | Incumbent re-elected. | ||
| Ralph A. Gamble | Republican | 1937 | Incumbent re-elected. | ||
| Katharine St. George | Republican | 1946 | Incumbent re-elected. | ||
| Jay Le Fevre | Republican | 1942 | Incumbent re-elected. | ||
| Bernard W. Kearney | Republican | 1942 | Incumbent re-elected. | ||
| William T. Byrne | Democratic | 1936 | Incumbent re-elected. | ||
| Dean P. Taylor | Republican | 1942 | Incumbent re-elected. | ||
| Clarence E. Kilburn | Republican | 1940 | Incumbent re-elected. | ||
| Hadwen C. Fuller | Republican | 1943 | Incumbent lost re-election. Democratic gain. | ||
| R. Walter Riehlman | Republican | 1946 | Incumbent re-elected. | ||
| Edwin Arthur Hall | Republican | 1939 | Incumbent re-elected. | ||
| John Taber | Republican | 1922 | Incumbent re-elected. | ||
| W. Sterling Cole | Republican | 1934 | Incumbent re-elected. | ||
| Kenneth B. Keating | Republican | 1946 | Incumbent re-elected. | ||
| James W. Wadsworth Jr. | Republican | 1932 | Incumbent re-elected. | ||
| Walter G. Andrews | Republican | 1930 | Incumbent retired. Republican hold. | ||
| Edward J. Elsaesser | Republican | 1944 | Incumbent lost re-election. Democratic gain. | ||
| John Cornelius Butler | Republican | 1941 | Incumbent lost re-election. Democratic gain. | ||
| Daniel A. Reed | Republican | 1918 | Incumbent re-elected. |
North Carolina
| District | Incumbent | Party | First elected | Result | Candidates |
| Herbert Covington Bonner | Democratic | 1940 | Incumbent re-elected. | ||
| John H. Kerr | Democratic | 1923 | Incumbent re-elected. | ||
| Graham A. Barden | Democratic | 1934 | Incumbent re-elected. | ||
| Harold D. Cooley | Democratic | 1934 | Incumbent re-elected. | ||
| John Hamlin Folger | Democratic | 1941 | Incumbent retired. Democratic hold. | ||
| Carl T. Durham | Democratic | 1938 | Incumbent re-elected. | ||
| J. Bayard Clark | Democratic | 1928 | Incumbent retired. Democratic hold. | ||
| Charles B. Deane | Democratic | 1946 | Incumbent re-elected. | ||
| Robert L. Doughton | Democratic | 1910 | Incumbent re-elected. | ||
| Hamilton C. Jones | Democratic | 1946 | Incumbent re-elected. | ||
| Alfred L. Bulwinkle | Democratic | 1930 | Incumbent re-elected. | ||
| Monroe M. Redden | Democratic | 1946 | Incumbent re-elected. |
North Dakota
| District | Incumbent | Party | First elected | Result | Candidates |
| William Lemke | Republican-NPL | 1942 | Incumbent re-elected. | ||
| Charles R. Robertson | Republican | 1944 | Incumbent lost renomination. Republican hold. |
Ohio
| District | Incumbent | Party | First elected | Result | Candidates |
| Charles H. Elston | Republican | 1938 | Incumbent re-elected. | ||
| William E. Hess | Republican | 1938 | Incumbent lost re-election. Democratic gain. | ||
| Raymond H. Burke | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| William Moore McCulloch | Republican | 1947 | Incumbent re-elected. | ||
| Cliff Clevenger | Republican | 1938 | Incumbent re-elected. | ||
| Edward O. McCowen | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Clarence J. Brown | Republican | 1938 | Incumbent re-elected. | ||
| Frederick C. Smith | Republican | 1938 | Incumbent re-elected. | ||
| Homer A. Ramey | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Thomas A. Jenkins | Republican | 1924 | Incumbent re-elected. | ||
| Walter E. Brehm | Republican | 1942 | Incumbent re-elected. | ||
| John M. Vorys | Republican | 1938 | Incumbent re-elected. | ||
| Alvin F. Weichel | Republican | 1942 | Incumbent re-elected. | ||
| Walter B. Huber | Democratic | 1944 | Incumbent re-elected. | ||
| Percy W. Griffiths | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Henderson H. Carson | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| J. Harry McGregor | Republican | 1940 | Incumbent re-elected. | ||
| Earl R. Lewis | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| Michael J. Kirwan | Democratic | 1936 | Incumbent re-elected. | ||
| Michael A. Feighan | Democratic | 1942 | Incumbent re-elected. | ||
| Robert Crosser | Democratic | 1922 | Incumbent re-elected. | ||
| Frances P. Bolton | Republican | 1940 | Incumbent re-elected. | ||
| George H. Bender | Republican | 1938 | Incumbent lost re-election. Democratic gain. |
Oklahoma
| District | Incumbent | Party | First elected | Result | Candidates |
| George B. Schwabe | Republican | 1944 | Incumbent lost re-election. Democratic gain. | ||
| William G. Stigler | Democratic | 1944 | Incumbent re-elected. | ||
| Carl Albert | Democratic | 1946 | Incumbent re-elected. | ||
| Glen D. Johnson | Democratic | 1946 | Incumbent retired to run for U.S. senator. Democratic hold. | ||
| Mike Monroney | Democratic | 1938 | Incumbent re-elected. | ||
| Toby Morris | Democratic | 1946 | Incumbent re-elected. | ||
| Preston E. Peden | Democratic | 1946 | Incumbent lost renomination. Democratic hold. | ||
| Ross Rizley | Republican | 1940 | Incumbent retired to run for U.S. senator. Democratic gain. |
Oregon
| District | Incumbent | Party | First elected | Result | Candidates |
| A. Walter Norblad | Republican | 1946 | Incumbent re-elected. | ||
| Lowell Stockman | Republican | 1942 | Incumbent re-elected. | ||
| Homer D. Angell | Republican | 1938 | Incumbent re-elected. | ||
| Harris Ellsworth | Republican | 1942 | Incumbent re-elected. |
Pennsylvania
| District | Incumbent | Party | First elected | Result | Candidates |
| James A. Gallagher | Republican | 1946 | Incumbent lost renomination. Democratic gain. | ||
| Robert N. McGarvey | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Hardie Scott | Republican | 1946 | Incumbent re-elected. | ||
| Franklin J. Maloney | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| George W. Sarbacher Jr. | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Hugh Scott | Republican | 1946 | Incumbent re-elected. | ||
| E. Wallace Chadwick | Republican | 1946 | Incumbent lost renomination. Republican hold. | ||
| Franklin H. Lichtenwalter | Republican | 1947 | Incumbent re-elected. | ||
| Paul B. Dague | Republican | 1946 | Incumbent re-elected. | ||
| James P. Scoblick | Republican | 1946 | Incumbent lost renomination. Democratic gain. | ||
| Mitchell Jenkins | Republican | 1946 | Incumbent retired. Democratic gain. | ||
| Ivor D. Fenton | Republican | 1938 | Incumbent re-elected. | ||
| Frederick Augustus Muhlenberg | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Wilson D. Gillette | Republican | 1941 | Incumbent re-elected. | ||
| Robert F. Rich | Republican | 1944 | Incumbent re-elected. | ||
| Samuel K. McConnell Jr. | Republican | 1944 | Incumbent re-elected. | ||
| Richard M. Simpson | Republican | 1937 | Incumbent re-elected. | ||
| John C. Kunkel | Republican | 1938 | Incumbent re-elected. | ||
| Leon H. Gavin | Republican | 1942 | Incumbent re-elected. | ||
| Francis E. Walter | Democratic | 1932 | Incumbent re-elected. | ||
| Chester H. Gross | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| James E. Van Zandt | Republican | 1946 | Incumbent re-elected. | ||
| William J. Crow | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Thomas E. Morgan | Democratic | 1944 | Incumbent re-elected. | ||
| Louis E. Graham | Republican | 1938 | Incumbent re-elected. | ||
| Harve Tibbott | Republican | 1938 | Incumbent lost re-election. Democratic gain. | ||
| Augustine B. Kelley | Democratic | 1940 | Incumbent re-elected. | ||
| Carroll D. Kearns | Republican | 1946 | Incumbent re-elected. | ||
| John McDowell | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Robert J. Corbett | Republican | 1938 1940 1944 | Incumbent re-elected. | ||
| James G. Fulton | Republican | 1944 | Incumbent re-elected. | ||
| Herman P. Eberharter | Democratic | 1936 | Incumbent re-elected. | ||
| Frank Buchanan | Democratic | 1946 | Incumbent re-elected. |
Rhode Island
| District | Incumbent | Party | First elected | Result | Candidates |
| Aime Forand | Democratic | 1940 | Incumbent re-elected. | ||
| John E. Fogarty | Democratic | 1940 | Incumbent re-elected. |
South Carolina
| District | Incumbent | Party | First elected | Result | Candidates |
| L. Mendel Rivers | Democratic | 1940 | Incumbent re-elected. | ||
| John J. Riley | Democratic | 1944 | Incumbent lost renomination. Democratic hold. | ||
| William Jennings Bryan Dorn | Democratic | 1946 | Incumbent retired to run for U.S. senator. Democratic hold. | ||
| Joseph R. Bryson | Democratic | 1938 | Incumbent re-elected. | ||
| James P. Richards | Democratic | 1932 | Incumbent re-elected. | ||
| John L. McMillan | Democratic | 1938 | Incumbent re-elected. |
South Dakota
| District | Incumbent | Party | First elected | Result | Candidates |
| Karl Mundt | Republican | 1938 | Incumbent retired to run for U.S. senator. Republican hold. | ||
| Francis Case | Republican | 1936 | Incumbent re-elected. |
Tennessee
| District | Incumbent | Party | First elected | Result | Candidates |
| Dayton E. Phillips | Republican | 1946 | Incumbent re-elected. | ||
| John Jennings | Republican | 1939 | Incumbent re-elected. | ||
| Estes Kefauver | Democratic | 1939 | Incumbent retired to run for U.S. senator. Democratic hold. | ||
| Albert Gore Sr. | Democratic | 1938 | Incumbent re-elected. | ||
| Joe L. Evins | Democratic | 1946 | Incumbent re-elected. | ||
| Percy Priest | Democratic | 1940 | Incumbent re-elected. | ||
| W. Wirt Courtney | Democratic | 1939 | Incumbent lost renomination. Democratic hold. | ||
| Tom J. Murray | Democratic | 1942 | Incumbent re-elected. | ||
| Jere Cooper | Democratic | 1928 | Incumbent re-elected. | ||
| Clifford Davis | Democratic | 1940 | Incumbent re-elected. |
Texas
| District | Incumbent | Party | First elected | Result | Candidates |
| Wright Patman | Democratic | 1928 | Incumbent re-elected. | ||
| Jesse M. Combs | Democratic | 1944 | Incumbent re-elected. | ||
| Lindley Beckworth | Democratic | 1938 | Incumbent re-elected. | ||
| Sam Rayburn | Democratic | 1912 | Incumbent re-elected. | ||
| Joseph Franklin Wilson | Democratic | 1946 | Incumbent re-elected. | ||
| Olin E. Teague | Democratic | 1946 | Incumbent re-elected. | ||
| Tom Pickett | Democratic | 1944 | Incumbent re-elected. | ||
| Albert Thomas | Democratic | 1936 | Incumbent re-elected. | ||
| Clark W. Thompson | Democratic | 1947 | Incumbent re-elected. | ||
| Lyndon B. Johnson | Democratic | 1937 | Incumbent retired to run for U.S. senator. Democratic hold. | ||
| William R. Poage | Democratic | 1936 | Incumbent re-elected. | ||
| Wingate H. Lucas | Democratic | 1946 | Incumbent re-elected. | ||
| Ed Gossett | Democratic | 1938 | Incumbent re-elected. | ||
| John E. Lyle Jr. | Democratic | 1944 | Incumbent re-elected. | ||
| Milton H. West | Democratic | 1933 | Incumbent retired. Democratic hold. | ||
| Kenneth M. Regan | Democratic | 1947 | Incumbent re-elected. | ||
| Omar Burleson | Democratic | 1946 | Incumbent re-elected. | ||
| Eugene Worley | Democratic | 1940 | Incumbent re-elected. | ||
| George H. Mahon | Democratic | 1934 | Incumbent re-elected. | ||
| Paul J. Kilday | Democratic | 1938 | Incumbent re-elected. | ||
| O. C. Fisher | Democratic | 1942 | Incumbent re-elected. |
Utah
| District | Incumbent | Party | First elected | Result | Candidates |
| Walter K. Granger | Democratic | 1940 | Incumbent re-elected. | ||
| William A. Dawson | Republican | 1946 | Incumbent lost re-election. Democratic gain. |
Vermont
| District | Incumbent | Party | First elected | Result | Candidates |
| Charles Albert Plumley | Republican | 1934 | Incumbent re-elected. |
Virginia
| District | Incumbent | Party | First elected | Result | Candidates |
| S. Otis Bland | Democratic | 1918 | Incumbent re-elected. | ||
| Porter Hardy Jr. | Democratic | 1946 | Incumbent re-elected. | ||
| J. Vaughan Gary | Democratic | 1945 (special) | Incumbent re-elected. | ||
| Watkins Abbitt | Democratic | 1948 (special) | Incumbent re-elected. | ||
| Thomas B. Stanley | Democratic | 1946 | Incumbent re-elected. | ||
| J. Lindsay Almond | Democratic | 1946 | Incumbent resigned April 17, 1948 to become Attorney General of Virginia. Democratic hold. Winner was also elected to finish the current term; see above. | ||
| Burr Harrison | Democratic | 1946 | Incumbent re-elected. | ||
| Howard W. Smith | Democratic | 1930 | Incumbent re-elected. | ||
| John W. Flannagan Jr. | Democratic | 1930 | Incumbent retired. Democratic hold. |
Washington
| District | Incumbent | Party | First elected | Result | Candidates |
| Homer Jones | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Henry M. Jackson | Democratic | 1940 | Incumbent re-elected. | ||
| Russell V. Mack | Republican | 1947 | Incumbent re-elected. | ||
| Hal Holmes | Republican | 1942 | Incumbent re-elected. | ||
| Walt Horan | Republican | 1942 | Incumbent re-elected. | ||
| Thor C. Tollefson | Republican | 1946 | Incumbent re-elected. |
West Virginia
| District | Incumbent | Party | First elected | Result | Candidates |
| Francis J. Love | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Melvin C. Snyder | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Edward G. Rohrbough | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Hubert S. Ellis | Republican | 1942 | Incumbent lost re-election. Democratic gain. | ||
| John Kee | Democratic | 1932 | Incumbent re-elected. | ||
| E. H. Hedrick | Democratic | 1944 | Incumbent re-elected. |
Wisconsin
| District | Incumbent | Party | First elected | Result | Candidates |
| Lawrence H. Smith | Republican | 1941 | Incumbent re-elected. | ||
| Glenn Robert Davis | Republican | 1947 | Incumbent re-elected. | ||
| William H. Stevenson | Republican | 1940 | Incumbent lost renomination. Republican hold. | ||
| John C. Brophy | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Charles J. Kersten | Republican | 1946 | Incumbent lost re-election. Democratic gain. | ||
| Frank B. Keefe | Republican | 1938 | Incumbent re-elected. | ||
| Reid F. Murray | Republican | 1938 | Incumbent re-elected. | ||
| John W. Byrnes | Republican | 1944 | Incumbent re-elected. | ||
| Merlin Hull | Republican | 1934 | Incumbent re-elected. | ||
| Alvin O'Konski | Republican | 1942 | Incumbent re-elected. |
Wyoming
| District | Incumbent | Party | First elected | Result | Candidates |
| Frank A. Barrett | Republican | 1942 | Incumbent re-elected. |