LONGEST TERMS IN OFFICE
Since the introduction of term limits in 1990, State Executive and State Senate members can only hold an office for two four-year terms. For the State Assembly, the limit is three two-year terms. Seats in the US House of Representatives and US Senate are not bound by term limits, and members may serve as long as the voters in their districts reelect them. The current longest-serving member of the legislature is Assemblyman Charles M. Calderon (who is now serving his 22nd year [in 2012] between the two houses). Only one current legislator is able to reach 20 years in a single house; Assemblyman Jim Nielsen (who served twelve years in the Senate prior to term limits, and is eligible to serve another eight).
Also of note is Governor Jerry Brown, who has previously served eight years (pre-term limits). If Brown serves his full current term, he will reach 12 years in that office (breaking the current record of 10 years held by Earl Warren).
Before the introduction of term limits, officials were limited only by their ability to attract voters on Election Day. With his Assembly and State Senate service combined, Ralph C. Dills holds the record for longest tenure in the state legislature. The following is a list of the longest terms in office in California history.
| Name | Office | Dates | Years |
| George Reilly | SBOE | 1939-1982 | 44 |
| Pete Stark | US Representative | 1973-Present | 39 (1) |
| Vincent Thomas | State Assembly | 1940-1978 | 38 |
| Henry Waxman | US Representative | 1975-Present | 37 |
| George Miller | US Representative | 1975-Present | 37 |
| U. S. Webb | Attorney General | 1903-1939 | 36 |
| Randolph Collier | State Senate | 1939-1976 | 36 |
| George E. Brown Jr. | US Representative | 1963-1971 1973-1999 |
34 |
| Herbert W. Slater | State Senate | 1914-1947 | 33 |
| Charles Johnson | Treasurer | 1923-1956 | 33 |
| Jerry Lewis | US Representative | 1979-Present (*) | 33 |
| Chet Holifield | US Representative | 1942-1974 | 32 |
| Don Edwards | US Representative | 1963-1993 | 32 |
| Willie Brown | State Assembly | 1964-1996 | 32 |
| Ralph Dills | State Senate | 1966-1998 | 32 |
| Clarence F. Lea | US Representative | 1917-1949 | 31.8 |
| David Dreier | US Representative | 1981-Present (*) | 31 |
| Edward Roybal | US Representative | 1963-1993 | 30 |
| Al Alquist | State Senate | 1966-1996 | 30 |
| John Vasconcellos | State Assembly | 1966-1996 | 30 |
| Nicholas Petris | State Senate | 1966-1996 | 30 |
| Frank C. Jordan | Secretary of State | 1911-1940 | 29 |
| Milton Marks | State Senate | 1967-1996 | 29 |
| Bill Thomas | US Representative | 1978-2007 | 29 |
| Howard Berman | US Representative | 1983-Present | 29 |
| Ralph E. Swing | State Senate | 1922-1950 | 28 |
| Gus Hawkins | State Assembly | 1934-1962 | 28 |
| Harry R. Sheppard | US Representative | 1937-1965 | 28 |
| Cecil R. King | US Representative | 1941-1969 | 28 |
| Hugh M. Burns | State Senate | 1942-1970 | 28 |
| Charles J. Conrad | State Assembly | 1946-1974 | 28 |
| Frank Lanterman | State Assembly | 1950-1978 | 28 |
| John E. Moss | US Representative | 1951-1979 | 28 |
| Bob Wilson | US Representative | 1953-1981 | 28 |
| Walter W. Stiern | State Senate | 1958-1986 | 28 |
| Richard Nevins | SBOE | 1959-1987 | 28 |
| Gus Hawkins | US Representative | 1963-1991 | 28 |
| Duncan Hunter | US Representative | 1981-2009 | 28 |
| Hiram Johnson | US Senate | 1917-1945 | 27 |
| Frank M. Jordan | Secretary of State | 1943-1970 | 27 |
| Ron Dellums | US Representative | 1971-1997 | 27 |
| Robert Matsui | US Representative | 1971-2005 | 27 |
| Tom Lantos | US Representative | 1981-2008 | 27 |
| Lester A. McMillan | State Assembly | 1942-1968 | 26 |
| Elton Gallegly | US Representative | 1987-Present (*) | 25 |
| Wally Herger | US Representative | 1987-Present (*) | 25 |
| Nancy Pelosi | US Representative | 1987-Present | 25 |
| Julius Kahn | US Representative | 1899-1903 1905-1924 |
24 |
| B. F. Rush | State Senate | 1904-1928 | 24 |
| Ernest C. Crowley | State Assembly | 1928-1952 | 24 |
| Harold J. Powers | State Senate | 1932-1956 | 24 |
| Harry L. Parkman | State Senate | 1932-1956 | 24 |
| Thomas A. Maloney | State Assembly | 1932-1956 | 24 |
| Hugh P. Donnelly | State Senate | 1942-1966 | 24 |
| Carley V. Porter | State Assembly | 1950-1974 | 24 |
| Donald L. Grunsky | State Senate | 1952-1976 | 24 |
| Pauline L. Davis | State Assembly | 1952-1976 | 24 |
| B. F. Sisk | US Representative | 1955-1979 | 24 |
| Tom Bane | State Assembly | 1958-1964 1974-1992 |
24 |
| Glenn M. Anderson | US Representative | 1969-1993 | 24 |
| Carlos J. Moorhead | US Representative | 1973-1997 | 24 |
| Ruben S. Ayala | State Senate | 1974-1998 | 24 |
| Alan Cranston | US Senate | 1969-1993 | 23 |
| Dana Rohrabacher | US Representative | 1989-Present | 23 |
| S. L. Heisinger | State Assembly | 1921-1929 1935-1949 |
22 |
| Lloyd Lowrey | State Assembly | 1940-1962 | 22 |
| John L. E. Collier | State Assembly | 1946-1968 | 22 |
| Frank P. Belotti | State Assembly | 1950-1972 | 22 |
| Charles Gubser | US Representative | 1953-1974 | 22 |
| Craig Hosmer | US Representative | 1953-1974 | 22 |
| Carlos Bee | State Assembly | 1954-1976 | 22 |
| John J. McFall | US Representative | 1957-1979 | 22 |
| Albert S. Rodda | State Senate | 1958-1982 | 22 |
| Harold T. Johnson | US Representative | 1959-1981 | 22 |
| H. L. Richardson | State Senate | 1966-1988 | 22 |
| Peter R. Chacon | State Assembly | 1970-1992 | 22 |
| Lou Papan | State Assembly | 1972-1988 1996-2002 |
22 |
| Newton R. Russell | State Senate | 1974-1996 | 22 |
| Norman Mineta | US Representative | 1975-1997 | 22 |
| Benjamin F. Langford | State Senate | 1879-1900 | 21 |
| George C. Perkins | US Senate | 1893-1915 | 21 |
| Herbert C. Jones | State Senate | 1913-1934 | 21 |
| Don A. Allen Sr. | State Assembly | 1938-1947 1956-1966 |
21 |
| Maxine Waters | US Representative | 1991-Present | 21 |
| J. M. Inman | State Senate | 1916-1936 | 20 |
| William Richard Sharkey | State Senate | 1916-1936 | 20 |
| Eleanor Miller | State Assembly | 1922-1942 | 20 |
| Thomas McCormack | State Senate | 1928-1948 | 20 |
| Bradford S. Crittenden | State Senate | 1930-1950 | 20 |
| Charles H. Deuel | State Senate | 1930-1950 | 20 |
| Arthur H. Breed Jr. | State Senate | 1938-1958 | 20 |
| Charles Brown | State Senate | 1942-1962 | 20 |
| Clayton Dills | State Assembly | 1946-1966 | 20 |
| Luther E. Gibson | State Senate | 1948-1968 | 20 |
| Edward E. Elliott | State Assembly | 1948-1968 | 20 |
| Charles W. Meyers | State Assembly | 1948-1968 | 20 |
| Charles M. Teague | US Representative | 1955-1975 | 20 |
| James C. Corman | US Representative | 1961-1981 | 20 |
| Leroy Greene | State Assembly | 1962-1982 | 20 |
| Bob Beverly | State Senate | 1976-1996 | 20 |
| Anthony C. Beilenson | US Representative | 1977-1997 | 20 |
| Diane Edith Watson | State Senate | 1978-1998 | 20 |
| Stephen Teale | State Senate | 1953-1972 | 19.5 |
| Ken Maddy | State Senate | 1979-1998 | 19.5 |
| Dianne Feinstein | US Senate | 1992-Present | 19 (2) |
| Barbara Boxer | US Senate | 1993-Present | 19 (3) |
| Lynn C. Woolsey | US Representative | 1993-Present (*) | 19 (3) |
| Lucille Roybal-Allard | US Representative | 1993-Present | 19 (3) |
| Anna Eshoo | US Representative | 1993-Present | 19 (3) |
| Bob Filner | US Representative | 1993-Present (*) | 19 (3) |
| Ed Royce |
US Representative | 1993-Present | 19 (3) |
| Xavier Becerra | US Representative | 1993-Present | 19 (3) |
| Howard "Buck" McKeon |
US Representative | 1993-Present | 19 (3) |
| Ken Calvert |
US Representative | 1993-Present | 19 (3) |
| Sam Farr |
US Representative | 1993-Present | 18.5 (4) |
| Alan Robbins | State Senate | 1973-1991 | 18.8 |
| John Burton | State Assembly | 1964-1974 1988-1996 |
18.2 |
| Zoe Lofgren |
US Representative | 1995-Present | 17 |
(1) Stark's tenure in Congress will exceed Reilly's tenure on the Board of Equalization on January 4, 2017.
(2) Feinstein will reach 20 years in the U.S. Senate on November 4, 2012 (in 171 days).
(3) This officeholder will reach 20 years of service in their current office on January 4, 2013 (in 232 days).
(4) This officeholder will reach 20 years of service in their current office on June 17, 2013 (in 396 days).
(*) This officeholder has announced that they will not seek reelection in 2012.
