2008 United States House of Representatives elections
The 2008 United States House of Representatives elections were held on November 4, 2008, to elect members to the United States House of Representatives to serve in the 111th United States Congress from January 3, 2009, until January 3, 2011. It coincided with the election of Barack Obama as president. All 435 voting seats, as well as all 6 non-voting seats, were up for election. The Democratic Party, which won a majority of seats in the 2006 election, expanded its control in 2008.
The Republican Party, hoping to regain the majority it lost in the 2006 election or at least expand its congressional membership, lost additional seats. With one exception, the only seats to switch from Democratic to Republican had been Republican-held prior to the 2006 elections. Republicans gained five Democratic seats total, while losing 26 of their own, giving the Democrats a net gain of 21 seats, effectively erasing all gains made by the GOP since 1994. In addition, with the defeat of Republican congressman Chris Shays in Connecticut's 4th district, this became the first time since the 1850s that no Republican represented the New England region.
The 10.6% popular vote advantage by the Democrats was the largest by either party since 1982, 26 years earlier, and as of 2024 remains the most recent time that either party won by a double-digit margin in the overall popular vote for the House of Representatives. Turnout increased due to the concurrent presidential election.
, this remains the last election in which Democrats won House seats in Idaho, North Dakota, and South Dakota; and the last election in which Democrats won a majority of seats in Arkansas, Indiana, Mississippi, Ohio, Tennessee, West Virginia, and Wisconsin. It is also the last time Republicans won the Delaware seat.
Retiring incumbents
Thirty-three incumbents voluntarily retired.Democratic incumbents
All seven seats held by retiring Democrats were won by Democrats.- : Bud Cramer: "To spend more time with my family and begin another chapter in my life"
- : Tom Lantos: died February 11, 2008, having already announced his planned retirement.
- : Mark Udall: Ran for and won the U.S. Senate seat vacated by Wayne Allard.
- : Tom Allen: Ran against and lost to Susan Collins in the U.S. Senate election.
- : Tom Udall: Ran for and won the U.S. Senate seat vacated by Pete Domenici.
- : Michael McNulty: "t's not what I want to do for the rest of my life."
- : Darlene Hooley: Because of the "cumulative effect of arduous travel, the relentless demands of fund-raising and 32 years of public service"
Republican incumbents
Twenty-seven Republicans retired. Thirteen of their seats were then won by Democrats.- : Terry Everett: Because of age and health
- : Rick Renzi: To fight federal criminal charges involving a land-swap deal
- : John Doolittle: To fight an FBI corruption investigation
- : Duncan Hunter Ran for and lost the race for the Republican nomination for president. Already planned to retire
- : Tom Tancredo: Ran for and lost the race for the Republican nomination for President
- : Dave Weldon: To return to his medical practice
- : Jerry Weller: To spend more time with his family, amid questions about his Nicaraguan land dealings, his wife's investments, and his relationship to an indicted defense contractor
- : Ray LaHood He was later confirmed.
- : Ron Lewis
- : Jim McCrery
- : Jim Ramstad
- : Chip Pickering
- : Kenny Hulshof: Ran for and lost the election for governor
- : Jim Saxton: Because of age and health
- : Mike Ferguson: To spend more time with his family
- : Heather Wilson: Ran in and lost the Republican primary for New Mexico's open U.S. Senate seat
- : Steve Pearce: Ran for and lost the election for New Mexico's open U.S. Senate seat
- : Vito Fossella: Amid scandal following a drunk driving arrest which led to revelations of infidelity and a secret family he maintained in Virginia
- : Jim Walsh
- : Tom Reynolds
- : Dave Hobson: "I wanted to go out on top"
- : Deborah Pryce: To spend more time with her family
- : Ralph Regula
- : John Peterson: To spend more time with his family
- : Luis Fortuño: Ran for and won the Governorship of Puerto Rico defeating Gov. Aníbal Acevedo Vilá
- : Thomas M. Davis: "It's time for me to take a sabbatical"
- : Barbara Cubin
Defeated incumbents
Incumbents defeated in primary election
One Republican lost in a primary and the seat was eventually won by a Democrat. One Democrat lost the primary as did two Republicans. The three primary winners, however, managed to retain the seat for the same party.- : Wayne Gilchrest, whose seat was later won by a Democrat
- : Albert Wynn, who subsequently resigned May 31, 2008
- : Chris Cannon
- : David Davis
Incumbents defeated in general election
Fourteen Republicans and five Democrats lost their general elections, thereby losing their seats to the other party.- : Marilyn Musgrave
- : Christopher Shays
- : Ric Keller
- : Tim Mahoney
- : Tom Feeney
- : Bill Sali
- : Nancy Boyda
- : William J. Jefferson
- : Don Cazayoux
- : Tim Walberg
- : Joe Knollenberg
- : Jon Porter
- : Randy Kuhl
- : Robin Hayes
- : Steve Chabot
- : Phil English
- : Nick Lampson
- : Thelma Drake
- : Virgil Goode
Open seat gains
Twelve seats held by retiring Republicans were won by Democrats. No Democratic retirements were picked up by Republicans.- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : Democratic gain.
- : NPP/Democratic gain.
- : Democratic gain.
Closest races
Fifty-two races were decided by 10% or lower.| District | Winner | Margin |
| data-sort-value=-1 | 0.23% | |
| data-sort-value=-1 | 0.38% | |
| data-sort-value=-1 | 0.49% | |
| data-sort-value=-1 | 0.62% | |
| data-sort-value=-1 | 0.76% | |
| data-sort-value=-1 | 0.79% | |
| data-sort-value=-1 | 1.21% | |
| data-sort-value=-1 | 1.93% | |
| data-sort-value=-1 | 2.31% | |
| data-sort-value=-1 | 2.38% | |
| data-sort-value=-1 | 2.47% | |
| data-sort-value=-1 | 2.51% | |
| data-sort-value=-1 | 2.71% | |
| data-sort-value=-1 | 2.97% | |
| data-sort-value=-1 | 3.25% | |
| data-sort-value=-1 | 3.58% | |
| data-sort-value=-1 | 3.85% | |
| data-sort-value=-1 | 3.94% | |
| data-sort-value=-1 | 3.97% | |
| data-sort-value=-1 | 4.02% | |
| data-sort-value=-1 | 4.04% | |
| data-sort-value=-1 | 4.15% | |
| data-sort-value=-1 | 4.20% | |
| data-sort-value=-1 | 4.40% | |
| data-sort-value=-1 | 4.94% | |
| data-sort-value=-1 | 4.94% | |
| data-sort-value=-1 | 5.06% | |
| data-sort-value=-1 | 5.12% | |
| data-sort-value=-1 | 5.14% | |
| data-sort-value=-1 | 5.15% | |
| data-sort-value=-1 | 5.17% | |
| data-sort-value=-1 | 5.56% | |
| data-sort-value=-1 | 5.57% | |
| data-sort-value=-1 | 5.89% | |
| data-sort-value=-1 | 6.04% | |
| data-sort-value=-1 | 6.11% | |
| data-sort-value=-1 | 6.91% | |
| data-sort-value=-1 | 6.91% | |
| data-sort-value=-1 | 7.37% | |
| data-sort-value=-1 | 7.48% | |
| data-sort-value=-1 | 7.56% | |
| data-sort-value=-1 | 7.63% | |
| data-sort-value=-1 | 7.82% | |
| data-sort-value=-1 | 8.00% | |
| data-sort-value=-1 | 8.10% | |
| data-sort-value=-1 | 9.36% | |
| data-sort-value=-1 | 9.44% | |
| data-sort-value=-1 | 9.45% | |
| data-sort-value=-1 | 9.58% | |
| data-sort-value=-1 | 9.80% | |
| data-sort-value=-1 | 9.82% | |
| data-sort-value=-1 | 9.91% |
Special elections
The thirteen special elections to the 110th United States Congress are listed below by election date.In 2008 there were eight special elections for vacant seats in the United States House of Representatives, for the 110th United States Congress. In the special elections, Democrats gained three seats while keeping hold of five seats. Republicans held only one of their four seats.
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Alabama
| District | CPVI | Incumbent | Party | First elected | Results | Candidates |
| 2002 | Incumbent re-elected. | |||||
| 1992 | Incumbent retired. Democratic gain. | |||||
| 2002 | Incumbent re-elected. | |||||
| 1996 | Incumbent re-elected. | |||||
| 1990 | Incumbent retired. Democratic hold. | |||||
| 1992 | Incumbent re-elected. | |||||
| 2002 | Incumbent re-elected. |
Alaska
| District | CPVI | Incumbent | Party | First elected | Results | Candidates |
| Don Young | 1973 | Incumbent re-elected. |
American Samoa
See [|Non-voting delegates], below.Arizona
| District | CPVI | Incumbent | Party | First elected | Results | Candidates |
| 2002 | Incumbent retired. Democratic gain. | |||||
| 2002 | Incumbent re-elected. | |||||
| 1994 | Incumbent re-elected. | |||||
| 1991 | Incumbent re-elected. | |||||
| 2006 | Incumbent re-elected. | |||||
| 2000 | Incumbent re-elected. | |||||
| 2002 | Incumbent re-elected. | |||||
| 2006 | Incumbent re-elected. |
Arkansas
| District | CPVI | Incumbent | Party | First elected | Results | Candidates |
| 1996 | Incumbent re-elected. | |||||
| 1996 | Incumbent re-elected. | |||||
| 2000 | Incumbent re-elected. | |||||
| 2000 | Incumbent re-elected. |
California
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent re-elected. | ||||
| 1986 | Incumbent re-elected. | ||||
| 1978 1988 2004 | Incumbent re-elected. | ||||
| 1990 | Incumbent retired. Republican hold. | ||||
| 2005 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1974 | Incumbent re-elected. | ||||
| 1987 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| April 8, 2008 | Incumbent re-elected. | ||||
| 1972 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1986 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1980 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1974 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 2001 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1990 | Incumbent re-elected. | ||||
| 1992 1998 2000 | Incumbent re-elected. | ||||
| 2007 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1978 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1999 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2005 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1994 2000 2006 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1980 | Incumbent retired. Republican hold. | ||||
| 2000 | Incumbent re-elected. |
Colorado
| District | Incumbent | Party | First elected | Results | Candidates |
| 1996 | Incumbent re-elected. | ||||
| 1998 | Incumbent retired to run for U.S. Senator. Democratic hold. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2002 | Incumbent lost re-election. Democratic gain. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1998 | Incumbent retired. Republican hold. | ||||
| 2006 | Incumbent re-elected. |
Connecticut
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1990 | Incumbent re-elected. | ||||
| 1987 | Incumbent lost re-election. Democratic gain. | ||||
| 2006 | Incumbent re-elected. |
Delaware
| District | Incumbent | Party | First elected | Results | Candidates |
| Mike Castle | 1992 | Incumbent re-elected. |
District of Columbia
See Non-voting delegates, below.Florida
| District | Incumbent | Party | First elected | Results | Candidates |
| 2001 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2000 | Incumbent lost re-election. Democratic gain. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1970 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1994 | Incumbent retired. Republican hold. | ||||
| 2006 | Incumbent lost re-election. Republican gain. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1989 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent lost re-election. Democratic gain. | ||||
| 2002 | Incumbent re-elected. |
Georgia
| District | Incumbent | Party | First elected | Results | Candidates |
| 1992 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1986 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2007 (special) | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| David Scott | 2002 | Incumbent re-elected. |
Guam
See Non-voting delegates, below.Hawaii
| District | Incumbent | Party | First elected | Results | Candidates |
| 1986 1988 1990 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
Idaho
| District | Incumbent | Party | First elected | Results | Candidates |
| 2006 | Incumbent lost re-election. Democratic gain. | ||||
| 1998 | Incumbent re-elected. |
Illinois
| District | Incumbent | Party | First elected | Results | Candidates |
| 1992 | Incumbent re-elected. | ||||
| 1995 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected, but resigned to become White House Chief of Staff. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1994 | Incumbent retired. Democratic gain. | ||||
| 1988 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| March 8, 2008 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1994 | Incumbent retired. Republican hold. | ||||
| 1996 | Incumbent re-elected. |
Indiana
| District | Incumbent | Party | First elected | Results | Candidates |
| 1984 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| March 11, 2008 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1998 2004 2006 | Incumbent re-elected. |
Iowa
| District | Incumbent | Party | First elected | Results | Candidates |
| 2006 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. |
Kansas
| District | Incumbent | Party | First elected | Results | Candidates |
| 1996 | Incumbent re-elected. | ||||
| 2006 | Incumbent lost re-election. Republican gain. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. |
Kentucky
| District | Incumbent | Party | First elected | Results | Candidates |
| 1994 | Incumbent re-elected. | ||||
| 1994 | Incumbent retired. Republican hold. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1980 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. |
Louisiana
Note: In Louisiana's 2nd and 4th districts, primary runoffs were held November 4, 2008 and the general election for both of these races were held December 6, 2008.| District | Incumbent | Party | First elected | Results | Candidates |
| 2008 | Incumbent re-elected. | ||||
| 1990 | Incumbent lost re-election. Republican gain. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1988 | Incumbent retired. Republican hold. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2008 | Incumbent lost re-election. Republican gain. | ||||
| 2004 | Incumbent re-elected. |
Maine
| District | Incumbent | Party | First elected | Results | Candidates |
| 1996 | Incumbent retired to run for U.S. Senator. Democratic hold. | ||||
| 2002 | Incumbent re-elected. |
Maryland
| District | Incumbent | Party | First elected | Results | Candidates |
| 1990 | Incumbent lost renomination. Democratic gain. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| June 17, 2008 | Incumbent re-elected. | ||||
| 1981 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. |
Massachusetts
| District | Incumbent | Party | First elected | Results | Candidates |
| 1991 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1980 | Incumbent re-elected. | ||||
| 2007 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1976 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 2001 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. |
Michigan
| District | Incumbent | Party | First elected | Results | Candidates |
| 1992 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1993 | Incumbent re-elected. | ||||
| 1990 | Incumbent re-elected. | ||||
| 1976 | Incumbent re-elected. | ||||
| 1986 | Incumbent re-elected. | ||||
| 2006 | Incumbent lost re-election. Democratic gain. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1992 | Incumbent lost re-election. Democratic gain. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1964 | Incumbent re-elected. | ||||
| 1955 | Incumbent re-elected. |
Minnesota
| District | Incumbent | Party | First elected | Results | Candidates |
| DFL | 2006 | Incumbent re-elected. | |||
| 2002 | Incumbent re-elected. | ||||
| 1990 | Incumbent retired. Republican hold. | ||||
| DFL | 2000 | Incumbent re-elected. | |||
| DFL | 2006 | Incumbent re-elected. | |||
| 2006 | Incumbent re-elected. | ||||
| DFL | 1990 | Incumbent re-elected. | |||
| DFL | 1974 | Incumbent re-elected. |
Mississippi
| District | Incumbent | Party | First elected | Results | Candidates |
| May 13, 2008 | Incumbent re-elected. | ||||
| 1993 | Incumbent re-elected. | ||||
| 1996 | Incumbent retired. Republican hold. | ||||
| 1989 | Incumbent re-elected. |
Missouri
| District | Incumbent | Party | First elected | Results | Candidates |
| 2000 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1976 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1996 | Incumbent retired to run for Governor. Republican hold. |
Montana
| District | Incumbent | Party | First elected | Results | Candidates |
| Denny Rehberg | 2000 | Incumbent re-elected. |
Nebraska
| District | Incumbent | Party | First elected | Results | Candidates |
| 2004 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
Nevada
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2002 | Incumbent lost re-election. Democratic gain. |
New Hampshire
| District | Incumbent | Party | First elected | Results | Candidates |
| 2006 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
New Jersey
| District | Incumbent | Party | First elected | Results | Candidates |
| 1990 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1984 | Incumbent retired. Democratic gain. | ||||
| 1980 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 2000 | Incumbent retired. Republican hold. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
New Mexico
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent retired to run for U.S. Senator. Democratic gain. | ||||
| 2002 | Incumbent retired to run for U.S. Senator. Democratic gain. | ||||
| 1998 | Incumbent retired to run for U.S. Senator. Democratic hold. |
New York
| District | Incumbent | Party | First elected | Results | Candidates |
| 2002 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1983 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1997 | Incumbent retired. Democratic gain. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1970 | Incumbent re-elected. | ||||
| 1990 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1988 | Incumbent retired. Democratic hold. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1988 | Incumbent retired. Democratic gain. | ||||
| 1998 | Incumbent retired. Republican hold. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1986 | Incumbent re-elected. | ||||
| 2004 | Incumbent lost re-election. Democratic gain. |
North Carolina
| District | Incumbent | Party | First elected | Results | Candidates |
| 2004 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1986 1994 1996 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1984 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1998 | Incumbent lost re-election. Democratic gain. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. |
North Dakota
| District | Incumbent | Party | First elected | Results | Candidates |
| Earl Pomeroy | Democratic-NPL | 1992 | Incumbent re-elected. |
Northern Mariana Islands
See Non-voting delegates, below.Oklahoma
| District | Incumbent | Party | First elected | Results | Candidates |
| 2002 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
Oregon
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1986 | Incumbent re-elected. | ||||
| 1996 | Incumbent retired. Democratic hold. |
Pennsylvania
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1994 | Incumbent lost re-election. Democratic gain. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1996 | Incumbent retired. Republican hold. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 2001 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. | ||||
| 1984 | Incumbent re-elected. | ||||
| 1974 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. |
Puerto Rico
See Non-voting delegates, below.Rhode Island
| District | Incumbent | Party | First elected | Results | Candidates |
| 1994 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. |
South Carolina
| District | Incumbent | Party | First elected | Results | Candidates |
| 2000 | Incumbent re-elected. | ||||
| 2001 (special) | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1992 1998 2004 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. |
South Dakota
| District | Incumbent | Party | First elected | Results | Candidates |
| Stephanie Herseth Sandlin | 2004 (special) | Incumbent re-elected. |
Tennessee
| District | Incumbent | Party | First elected | Results | Candidates |
| 2006 | Incumbent lost renomination. Republican hold. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1982 1994 2002 | Incumbent re-elected. | ||||
| 1984 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
Texas
| District | Incumbent | Party | First elected | Results | Candidates |
| 2004 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1991 | Incumbent re-elected. | ||||
| 1980 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1984 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 1976 (special) 1976 1978 1984 1996 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 1990 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| Charlie González | 1998 | Incumbent re-elected. | |||
| 1986 | Incumbent re-elected. | ||||
| 1996 2004 2006 | Incumbent lost re-election. Republican gain. | ||||
| 1997 (special) 2004 2006 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2002 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. |
U.S. Virgin Islands
See Non-voting delegates, below.Utah
| District | Incumbent | Party | First elected | Results | Candidates |
| 2002 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1996 | Incumbent lost renomination. Republican hold. |
Vermont
| District | Incumbent | Party | First elected | Results | Candidates |
| Peter Welch | 2006 | Incumbent re-elected. |
Virginia
| District | Incumbent | Party | First elected | Results | Candidates |
| 2007 | Incumbent re-elected. | ||||
| 2004 | Incumbent lost re-election. Democratic gain. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2001 | Incumbent re-elected. | ||||
| 1996 | Incumbent lost re-election. Democratic gain. | ||||
| 1992 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1990 | Incumbent re-elected. | ||||
| 1982 | Incumbent re-elected. | ||||
| 1980 | Incumbent re-elected. | ||||
| 1994 | Incumbent retired. Democratic gain. |
Washington
| District | Incumbent | Party | First elected | Results | Candidates |
| 1992 1994 1998 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1994 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1976 | Incumbent re-elected. | ||||
| 1988 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. |
West Virginia
| District | Incumbent | Party | First elected | Results | Candidates |
| 1982 | Incumbent re-elected. | ||||
| 2000 | Incumbent re-elected. | ||||
| 1976 | Incumbent re-elected. |
Wisconsin
| District | Incumbent | Party | First elected | Results | Candidates |
| 1998 | Incumbent re-elected. | ||||
| 1998 | Incumbent re-elected. | ||||
| 1996 | Incumbent re-elected. | ||||
| 2004 | Incumbent re-elected. | ||||
| 1978 | Incumbent re-elected. | ||||
| 1979 | Incumbent re-elected. | ||||
| 1969 | Incumbent re-elected. | ||||
| 2006 | Incumbent re-elected. |
Wyoming
| District | Incumbent | Party | First elected | Results | Candidates |
| Barbara Cubin | 1994 | Incumbent retired. Republican hold. |
Non-voting delegates
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