# California's 12th congressional district

California's 12th congressional district is a congressional district in northern California. Lateefah Simon, a Democrat, has represented the district since January 2025. The district was represented previously by longtime congresswoman Barbara Lee.
Currently, the 12th district is located in Alameda County and includes the cities of Oakland, Berkeley, Emeryville, Alameda, Albany, Piedmont, and most of San Leandro. With a Cook Partisan Voter Index rating of D+40, the 12th district is the most Democratic district in both California and the United States, giving nearly 90% of its vote to Democrats in both the 2016 and 2020 presidential elections.
Before redistricting in 2023, the 12th district was within San Francisco, encompassing most of the city. The remainder of the city was included in the 14th district.

## History

When the district was created after the 1930 census, it was located in Los Angeles County. As California's population grew, however, the district generally was moved northward, eventually to the San Francisco peninsula.
Richard Nixon, who would subsequently serve as the 37th president of the United States, represented this district from 1947 to 1951, when it was located to the east of Los Angeles. Nancy Pelosi, the former speaker of the House, represented the district from 2013 to 2023, when it covered most of San Francisco. She had previously served California's 5th congressional district from 1987 to 1993 and California's 8th congressional district from 1993 to 2013 and currently represents California's 11th congressional district.

## Recent election results from statewide races

| Year | Office | Results |
| 2008 | President | Obama 90% - 10% |
| 2010 | Governor | Brown 86% - 11% |
| 2010 | Lt. Governor | Newsom 81% - 13% |
| 2010 | Secretary of State | Bowen 82% - 10% |
| 2010 | Attorney General | Harris 78% - 15% |
| 2010 | Treasurer | Lockyer 83% - 9% |
| 2010 | Controller | Chiang 83% - 9% |
| 2012 | President | Obama 91% - 9% |
| 2014 | Governor | Brown 92% - 8% |
| 2016 | President | Clinton 88% - 6% |
| 2018 | Governor | Newsom 91% - 9% |
| 2018 | Attorney General | Becerra 91% - 9% |
| 2020 | President | Biden 89% - 9% |
| 2022 | Senate (Reg.) | Padilla 91% - 9% |
| 2022 | Governor | Newsom 90% - 10% |
| 2022 | Lt. Governor | Kounalakis 90% - 10% |
| 2022 | Secretary of State | Weber 90% - 10% |
| 2022 | Attorney General | Bonta 89% - 11% |
| 2022 | Treasurer | Ma 89% - 11% |
| 2022 | Controller | Cohen 84% - 16% |
| 2024 | President | Harris 85% - 11% |
| 2024 | Senate (Reg.) | Schiff 88% - 12% |

## Composition

| FIPS County Code | County | Seat | Population |
| 1 | Alameda | Oakland | 1,622,188 |
Due to the 2020 redistricting, California's 12th district has effectively been shifted to the former geography of the 13th district. It encompasses the coastal section of Alameda County, and is anchored by Oakland. The district also includes the cities of Alameda, Albany, Berkeley, Emeryville, Piedmont, and San Leandro. Technically, the westernmost tip of Alameda Island is part of the City and County of San Francisco, but it is uninhabited.
This district borders the 13th district, and Alameda County is partitioned between them by Grant Ave, Union Pacific, Lewelling Blvd, Wicks Blvd, Manor Blvd, Juniper St, Dayton Ave, Padre Ave, Fargo Ave, Edgemoor St, Trojan Ave, Beatty St, Fleming St, Highway 880, Floresta Blvd, Halcyon Dr, Hesperian Blvd, Thornally Dr, Highway 185, 150th Ave, Highway 580, Benedict Dr, San Leandro Creek, and Lake Chabot Regional Park.

### Cities

* Oakland – 440,646
* Berkeley – 124,321
* San Leandro – 91,008
* Alameda – 78,280
* Albany – 20,271
* Emeryville – 12,905
* Piedmont – 11,270

## List of members representing the district

| Representative | Party | Dates | Cong ress(es) | Electoral history | Counties |
| District created March 4, 1933 ||||||
| John H. Hoeppel (Arcadia) | Democratic | March 4, 1933 – January 3, 1937 | 73rd 74th | Elected in 1932. Re-elected in 1934. Lost renomination. | 1933–1953: Eastern Los Angeles (Pasadena, Pomona, Whittier) |
| Jerry Voorhis (San Dimas) | Democratic | January 3, 1937 – January 3, 1947 | 75th 76th 77th 78th 79th | Elected in 1936. Re-elected in 1938. Re-elected in 1940. Re-elected in 1942. Re-elected in 1944. Lost re-election. | 1933–1953: Eastern Los Angeles (Pasadena, Pomona, Whittier) |
| Richard Nixon (Whittier) | Republican | January 3, 1947 – November 30, 1950 | 80th 81st | Elected in 1946. Re-elected in 1948. Retired to run for U.S. Senator. Resigned when appointed U.S. Senator. | 1933–1953: Eastern Los Angeles (Pasadena, Pomona, Whittier) |
| Vacant | Vacant | November 30, 1950 – January 3, 1951 | 81st | | 1933–1953: Eastern Los Angeles (Pasadena, Pomona, Whittier) |
| Patrick J. Hillings (Arcadia) | Republican | January 3, 1951 – January 3, 1953 | 82nd | Elected in 1950. Redistricted to the 25th district. | 1933–1953: Eastern Los Angeles (Pasadena, Pomona, Whittier) |
| Allan O. Hunter (Fresno) | Republican | January 3, 1953 – January 3, 1955 | 83rd | Redistricted from the 9th district and re-elected in 1952. Lost re-election. | 1953–1963: Fresno, Madera, Merced |
| B. F. Sisk (Fresno) | Democratic | January 3, 1955 – January 3, 1963 | 84th 85th 86th 87th | Elected in 1954. Re-elected in 1956. Redistricted to the 16th district. | 1953–1963: Fresno, Madera, Merced |
| Burt Talcott (Salinas) | Republican | January 3, 1963 – January 3, 1975 | 88th 89th 90th 91st 92nd 93rd | Elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Redistricted to the 16th district. | 1963–1967: Monterey, San Benito, San Luis Obispo, Santa Cruz |
| Burt Talcott (Salinas) | Republican | January 3, 1963 – January 3, 1975 | 88th 89th 90th 91st 92nd 93rd | Elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Redistricted to the 16th district. | 1967–1973: Kings, Monterey, San Luis Obispo, Santa Cruz |
| Burt Talcott (Salinas) | Republican | January 3, 1963 – January 3, 1975 | 88th 89th 90th 91st 92nd 93rd | Elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Redistricted to the 16th district. | 1973–1975: Monterey, San Benito, northwestern San Luis Obispo, southern Santa Clara, Santa Cruz |
| Pete McCloskey (Menlo Park) | Republican | January 3, 1975 – January 3, 1983 | 94th 95th 96th 97th | Redistricted from the 17th district and re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Retired to run for U.S. Senator. | 1975–1983: Southern San Mateo, northern Santa Clara |
| Ed Zschau (Los Altos) | Republican | January 3, 1983 – January 3, 1987 | 98th 99th | Elected in 1982. Re-elected in 1984. Retired to run for U.S. Senator. | 1983–1993: Southern San Mateo, Santa Clara, northern Santa Cruz |
| Ernie Konnyu (Saratoga) | Republican | January 3, 1987 – January 3, 1989 | 100th | Elected in 1986. Lost renomination. | 1983–1993: Southern San Mateo, Santa Clara, northern Santa Cruz |
| Tom Campbell (Stanford) | Republican | January 3, 1989 – January 3, 1993 | 101st 102nd | Elected in 1988. Re-elected in 1990. Retired to run for U.S. Senator. | 1983–1993: Southern San Mateo, Santa Clara, northern Santa Cruz |
| Tom Lantos (San Mateo) | Democratic | January 3, 1993 – February 11, 2008 | 103rd 104th 105th 106th 107th 108th 109th 110th | Redistricted from the 11th district and re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Announced retirement, then died. | 1993–2003: Southwestern San Francisco, northern San Mateo |
| Tom Lantos (San Mateo) | Democratic | January 3, 1993 – February 11, 2008 | 103rd 104th 105th 106th 107th 108th 109th 110th | Redistricted from the 11th district and re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Announced retirement, then died. | 2003–2013: Southwestern San Francisco, northern San Mateo |
| Vacant | Vacant | February 11, 2008 – April 8, 2008 | 110th | | 2003–2013: Southwestern San Francisco, northern San Mateo |
| Jackie Speier (Hillsborough) | Democratic | April 8, 2008 – January 3, 2013 | 110th 111th 112th | Elected to finish Lantos's term. Re-elected in 2008. Re-elected in 2010. Redistricted to the 14th district. | 2003–2013: Southwestern San Francisco, northern San Mateo |
| Nancy Pelosi (San Francisco) | Democratic | January 3, 2013 – January 3, 2023 | 113th 114th 115th 116th 117th | Redistricted from the 8th district and re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Redistricted to the 11th district. | 2013–2023: Most of San Francisco |
| Barbara Lee (Oakland) | Democratic | January 3, 2023 – January 3, 2025 | 118th | Redistricted from the 13th district and re-elected in 2022. Retired to run for U.S. senator. | 2023–present northwestern portion of Alameda County |
| Lateefah Simon (Emeryville) | Democratic | January 3, 2025 – present | 119th | Elected in 2024. | 2023–present northwestern portion of Alameda County |

## Election results
### 1932

1932 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | John H. Hoeppel | 43,122 | 45.8% |
| | Republican | Frederick F. Houser | 40,674 | 43.2% |
| | Prohibition | Richard M. Cannon | 10,308 | 11.0% |
| Total votes | Total votes | Total votes | 94,104 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) |

### 1934

1934 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | John H. Hoeppel (Incumbent) | 52,595 | 50.7% |
| | Republican | Frederick F. Houser | 51,216 | 49.3% |
| Total votes | Total votes | Total votes | 103,811 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1936

1936 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jerry Voorhis | 62,034 | 53.7% |
| | Republican | Frederick F. Houser | 53,445 | 46.3% |
| Total votes | Total votes | Total votes | 115,479 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1938

1938 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jerry Voorhis (Incumbent) | 75,003 | 60.8% |
| | Republican | Eugene W. Nixon | 40,457 | 32.8% |
| | Townsend | Russell R. Hand | 7,903 | 6.4% |
| Total votes | Total votes | Total votes | 123,363 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1940

1940 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jerry Voorhis (Incumbent) | 99,494 | 64.0% |
| | Republican | Eugene W. Nixon | 54,731 | 35.2% |
| | Communist | Albert Lewis | 1,152 | 0.8% |
| Total votes | Total votes | Total votes | 155,377 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1942

1942 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jerry Voorhis (Incumbent) | 53,705 | 56.8% |
| | Republican | Robert P. Shuler | 40,780 | 43.2% |
| Total votes | Total votes | Total votes | 94,485 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1944

1944 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jerry Voorhis (Incumbent) | 77,385 | 55.3% |
| | Republican | Roy P. McLaughlin | 62,524 | 44.7% |
| Total votes | Total votes | Total votes | 139,909 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1946

1946 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Richard Nixon | 65,586 | 56.0% |
| | Democratic | Jerry Voorhis (Incumbent) | 49,994 | 42.7% |
| | Prohibition | John Henry Hoeppel | 1,476 | 1.3% |
| Total votes | Total votes | Total votes | 117,056 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### 1948

1948 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Richard Nixon (Incumbent) | 141,509 | 87.8% |
| | Progressive | Una W. Rice | 19,631 | 12.2% |
| Total votes | Total votes | Total votes | 161,140 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1950

1950 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Patrick J. Hillings | 107,933 | 60.1% |
| | Democratic | Steve Zetterberg | 71,682 | 39.9% |
| Total votes | Total votes | Total votes | 179,615 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1952

1952 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Allan O. Hunter (Incumbent) | 103,587 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1954

1954 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | B. F. Sisk | 63,911 | 53.8% |
| | Republican | Allan O. Hunter (Incumbent) | 54,903 | 46.2% |
| Total votes | Total votes | Total votes | 118,814 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### 1956

1956 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | B. F. Sisk (Incumbent) | 109,920 | 73% |
| | Republican | Robert B. Moore | 40,663 | 27% |
| Total votes | Total votes | Total votes | 150,583 | 100% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1958

1958 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | B. F. Sisk (Incumbent) | 112,702 | 81.1% |
| | Republican | Daniel K. Halpin | 26,228 | 18.9% |
| Total votes | Total votes | Total votes | 138,930 | 100% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1960

1960 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | B. F. Sisk (Incumbent) | 141,974 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1962

1962 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Burt Talcott (Incumbent) | 75,424 | 61.3% |
| | Democratic | William K. Steward | 47,576 | 38.7% |
| Total votes | Total votes | Total votes | 123,000 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican win (new seat) | Republican win (new seat) | Republican win (new seat) | Republican win (new seat) |

### 1964

1964 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Burt Talcott (Incumbent) | 93,112 | 61.9% |
| | Democratic | William K. Steward | 57,242 | 38.1% |
| Total votes | Total votes | Total votes | 150,354 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1966

1966 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Burt Talcott (Incumbent) | 108,070 | 77.3% |
| | Democratic | Gerald V. Barron | 31,787 | 22.7% |
| Total votes | Total votes | Total votes | 139,857 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1968

1968 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Burt Talcott (Incumbent) | 140,713 | 94.9% |
| | American Independent | Ann J. Holliday | 7,593 | 5.1% |
| Total votes | Total votes | Total votes | 148,308 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1970

1970 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Burt Talcott (Incumbent) | 95,549 | 63.6% |
| | Democratic | O'Brien Riordan | 50,942 | 33.9% |
| | Peace and Freedom | Herbert H. Foster Jr. | 3,682 | 2.5% |
| Total votes | Total votes | Total votes | 150,173 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1972

1972 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Burt Talcott (Incumbent) | 105,555 | 54.0% |
| | Democratic | Julian Camacho | 84,268 | 43.1% |
| | American Independent | Stanley K. Monteith | 5,753 | 2.9% |
| Total votes | Total votes | Total votes | 195,576 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1974

1974 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Pete McCloskey (Incumbent) | 103,228 | 69.1% |
| | Democratic | Gary G. Gillmor | 46,197 | 30.9% |
| Total votes | Total votes | Total votes | 149,425 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1976

1976 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Pete McCloskey (Incumbent) | 130,332 | 66.2% |
| | Democratic | David T. Harris | 61,526 | 31.3% |
| | American Independent | Joseph David "Joss" Cooney | 4,999 | 2.5% |
| Total votes | Total votes | Total votes | 196,857 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1978

1978 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Pete McCloskey (Incumbent) | 116,982 | 73.1% |
| | Democratic | Kirsten Olsen | 34,472 | 21.5% |
| | American Independent | Harold R. Boylan | 5,609 | 3.5% |
| | Peace and Freedom | Adele Fumino | 3,022 | 1.9% |
| Total votes | Total votes | Total votes | 160,085 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1980

1980 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Pete McCloskey (Incumbent) | 143,817 | 72.2% |
| | Democratic | Kirsten Olsen | 37,009 | 18.6% |
| | Libertarian | Bill Evers | 15,073 | 7.6% |
| | Peace and Freedom | Adele Fumino | 3,184 | 1.6% |
| Total votes | Total votes | Total votes | 199,083 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1982

1982 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Zschau | 115,365 | 63.0% |
| | Democratic | Emmett Lynch | 61,372 | 33.5% |
| | Libertarian | William C. "Bill" White | 6,471 | 3.5% |
| Total votes | Total votes | Total votes | 183,208 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1984

1984 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Zschau (Incumbent) | 155,795 | 61.7% |
| | Democratic | Martin Carnoy | 91,026 | 36.0% |
| | Libertarian | William C. "Bill" White | 5,872 | 2.3% |
| Total votes | Total votes | Total votes | 252,963 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1986

1986 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Ernie Konnyu | 111,252 | 59.5% |
| | Democratic | Lance T. Weil | 69,564 | 37.2% |
| | Libertarian | William C. "Bill" White | 6,227 | 3.3% |
| Total votes | Total votes | Total votes | 187,043 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1988

1988 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom Campbell | 136,384 | 51.7% |
| | Democratic | Anna Eshoo | 121,523 | 46.0% |
| | Libertarian | Tom Grey | 6,023 | 2.3% |
| Total votes | Total votes | Total votes | 263,930 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1990

1990 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom Campbell (Incumbent) | 125,157 | 60.8% |
| | Democratic | Bob Palmer | 69,270 | 33.7% |
| | Libertarian | Chuck Olson | 11,271 | 5.5% |
| Total votes | Total votes | Total votes | 205,698 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1992

1992 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos | 157,205 | 68.8% |
| | Republican | Jim R. Tomlin | 53,278 | 23.3% |
| | Peace and Freedom | Mary Weldon | 10,142 | 4.4% |
| | Libertarian | George L. O'Brien | 7,782 | 3.4% |
| Total votes | Total votes | Total votes | 228,407 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### 1994

1994 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 118,408 | 67.42% |
| | Republican | Deborah Wilder | 57,228 | 32.58% |
| Total votes | Total votes | Total votes | 175,636 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1996

1996 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 149,052 | 71.7% |
| | Republican | Storm Jenkins | 49,278 | 23.8% |
| | Libertarian | Christopher Schmidt | 6,111 | 2.9% |
| | Natural Law | Richard Bong | 3,472 | 1.6% |
| Total votes | Total votes | Total votes | 207,913 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1998

1998 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 128,135 | 73.98% |
| | Republican | Robert H. Evans Jr. | 36,562 | 21.11% |
| | Libertarian | Michael J. Moloney | 8,515 | 4.92% |
| Total votes | Total votes | Total votes | 173,212 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2000

2000 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 158,404 | 74.6% |
| | Republican | Mike Garza | 44,162 | 20.8% |
| | Libertarian | Barbara J. Less | 6,431 | 3.0% |
| | Natural Law | Rifkin Young | 3,559 | 1.6% |
| Total votes | Total votes | Total votes | 212,556 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2002

2002 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 105,597 | 68.1% |
| | Republican | Michael J. Moloney | 38,381 | 24.8% |
| | Libertarian | Maad Abu-Ghazalah | 11,006 | 7.1% |
| Total votes | Total votes | Total votes | 185,216 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2004

2004 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 171,852 | 68.1% |
| | Republican | Mike Garza | 52,593 | 20.8% |
| | Green | Pat Green | 23,038 | 9.1% |
| | Libertarian | Harland Harrison | 5,116 | 2.0% |
| Total votes | Total votes | Total votes | 252,599 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2006

2006 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Lantos (Incumbent) | 138,650 | 76.1% |
| | Republican | Mike Moloney | 43,674 | 23.9% |
| Total votes | Total votes | Total votes | 182,324 | 100.0% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2008 (Special)

2008 special election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jackie Speier | 66,279 | 76.90% |
| | Republican | Greg Conlon | 7,990 | 9.27% |
| | Democratic | Michelle McMurry | 4,546 | 5.27% |
| | Republican | Mike Moloney | 4,517 | 5.24% |
| | Green | Barry Hermanson | 1,947 | 2.26% |
| | Libertarian | Kevin Peterson (write-in) | 2 | 0.00% |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 903 | 1.05% |
| Total votes | Total votes | Total votes | 86,184 | 100.00% |
| Turnout | Turnout | Turnout | | 25.69% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2008

2008 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jackie Speier (Incumbent) | 200,442 | 75.2% |
| | Republican | Greg Conlon | 49,258 | 18.5% |
| | Peace and Freedom | Nathalie Hrizi | 5,793 | 2.2% |
| | Green | Barry Hermanson | 5,776 | 2.1% |
| | Libertarian | Kevin Dempsey Peterson | 5,584 | 2.0% |
| Total votes | Total votes | Total votes | 266,853 | 100% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2010

2010 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jackie Speier (Incumbent) | 152,044 | 75.6% |
| | Republican | Mike Moloney | 44,475 | 22.2% |
| | Libertarian | Mark Paul Williams | 4,611 | 2.2% |
| | Independent | Joseph Michael Harding (write-in) | 32 | 0.0% |
| Total votes | Total votes | Total votes | 201,162 | 100% |
| Turnout | Turnout | Turnout | | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2012

2012 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nancy Pelosi | 253,709 | 85.1% |
| | Republican | John Dennis | 44,478 | 14.9% |
| Total votes | Total votes | Total votes | 298,187 | 100.0% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2014

2014 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nancy Pelosi (Incumbent) | 160,067 | 83.3% |
| | Republican | John Dennis | 32,197 | 16.7% |
| Total votes | Total votes | Total votes | 192,264 | 100.0% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2016

2016 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nancy Pelosi (Incumbent) | 274,035 | 80.9% |
| | Independent | Preston Picus | 64,810 | 19.1% |
| Total votes | Total votes | Total votes | 338,845 | 100% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2018

2018 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nancy Pelosi (Incumbent) | 275,292 | 86.8% |
| | Republican | Lisa Remmer | 41,780 | 13.2% |
| Total votes | Total votes | Total votes | 317,072 | 100% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2020

2020 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nancy Pelosi (incumbent) | 281,776 | 77.6% |
| | Democratic | Shahid Buttar | 81,174 | 22.4% |
| Total votes | Total votes | Total votes | 362,950 | 100% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2022

2022 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Barbara Lee (incumbent) | 217,110 | 90.5% |
| | Republican | Stephen Slauson | 22,859 | 9.5% |
| Total votes | Total votes | Total votes | 239,969 | 100% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2024

2024 United States House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lateefah Simon | 185,176 | 65.4 |
| | Democratic | Jennifer Tran | 97,849 | 34.6 |
| Total votes | Total votes | Total votes | 283,025 | 100% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |