LONGEST TERMS IN OFFICE
In the first incarnation of term limits, which started in 1990, constitutional officers and State Senate members can hold an office for two four-year terms. In the State Assembly, the limit was three two-year terms. Under the new term limits, starting in 2012, members of the Legislature are now limited to a total of 12 years in office (no matter which house they are in when they serve those years).
Seats in the US House of Representatives and US Senate are not bound by term limits, and members may serve for as long as the voters in their districts reelect them. The current longest-serving member of the legislature is Assemblyman Jim Nielsen, who served twelve years in the Senate prior to term limits, four years in the Assembly under old term limits, and may be able to serve another decade in the Senate.
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).
As of January 3, 2013, the longest terms that California elected officials have held a single office is:
| Name | Office | Dates | Years |
| George Reilly | Board of Equalization |
1939-1982 | 43 |
| Pete Stark | US Representative | 1973-2013 | 40 |
| Vincent Thomas | State Assembly | 1940-1978 | 39 |
| Richard E. Collins | Board of Equalization | 1907-1946 | 38 |
| Henry Waxman | US Representative | 1975-Present | 38 |
| George Miller | US Representative | 1975-Present | 38 |
| 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 |
| Jerry Lewis | US Representative | 1979-2013 | 34 |
| Herbert W. Slater | State Senate | 1914-1947 | 33 |
| Charles Johnson | Treasurer | 1923-1956 | 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 |
| David Dreier | US Representative | 1981-2013 | 32 |
| Clarence F. Lea | US Representative | 1917-1949 | 31.8 |
| 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 |
| Howard Berman | US Representative | 1983-2013 | 30 |
| Frank C. Jordan | Secretary of State | 1911-1940 | 29 |
| Milton Marks | State Senate | 1967-1996 | 29 |
| Bill Thomas | US Representative | 1978-2007 | 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 | Board of Equalization | 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 |
| Richard Nevins | SBOE | 1959-1986 | 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 | 1987-2013 | 26 |
| Wally Herger | US Representative | 1987-2013 | 26 |
| Nancy Pelosi | US Representative | 1987-Present | 26 |
| 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 |
| Dana Rohrabacher | US Representative | 1989-Present | 24 |
| Alan Cranston | US Senate | 1969-1993 | 23 |
| John C. Corbett | Board of Equalization | 1915-1938 | 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 Russell | State Senate | 1974-1996 | 22 |
| Norman Mineta | US Representative | 1975-1997 | 22 |
| Maxine Waters | US Representative | 1991-Present | 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 |
| 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 |
| Dianne Feinstein | US Senate | 1992-Present | 20 |
| Barbara Boxer | US Senate | 1993-Present | 20 |
| Lynn C. Woolsey | US Representative | 1993-2013 | 20 |
| Lucille Roybal-Allard | US Representative | 1993-Present | 20 |
| Anna Eshoo | US Representative | 1993-Present | 20 |
| Bob Filner | US Representative | 1993-2013 | 20 |
| Ed Royce |
US Representative | 1993-Present | 20 |
| Xavier Becerra | US Representative | 1993-Present | 20 |
| Howard "Buck" McKeon |
US Representative | 1993-Present | 20 |
| Ken Calvert |
US Representative | 1993-Present | 20 |
| Sam Farr |
US Representative | 1993-Present | 20 |
| Stephen Teale | State Senate | 1953-1972 | 19.5 |
| Ken Maddy | State Senate | 1979-1998 | 19.5 |
| 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 |
| Jim Nielsen |
State Senate | 1979-1990 2013-Present |
12 (3) |
(1) Farr reached 20 years of service in Congress on June 17, 2013.
(3) Nielsen will reach 20 years of service in the State Senate on December 3, 2020 (in 2724 days).
