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Supervisors - District 1
| Mark Medina | Elected March 3, 2020 Elected June 7, 2016 |  |
| Margie Barrios | Elected June 5, 2012 Elected June 3, 2008 |  |
| Don Marcus | Elected March 2, 2004 | |
| Richard V. Scagliotti | Elected March 7, 2000 Elected June 2, 1996 Elected June 2, 1992 Elected November 8, 1988 | |
| Frank J. Sabbatini | Elected June 5, 1984 Elected June 3, 1980 Elected June 8, 1976 Elected June 6, 1972 Elected June 4, 1968 Elected November 5, 1964 | |
| Joseph R. Scagliotti | Elected November 3, 1960 | |
| Robert Grant | Elected June 3, 1956 Elected June 3, 1952 Elected June 1, 1948 Appointed September 18, 1947 | |
| A. G. Turner | Elected May 16, 1944 - - (Resigned September 1, 1947) Elected August 27, 1940 Elected August 25, 1936 Elected August 30, 1932 Elected August 28, 1928 Elected November 4, 1924 | |
| T. H. French | Elected November 2, 1920 Elected November 7, 1916 Elected November 5, 1912 | |
| Daniel McClosky | Elected November 3, 1908 Elected November 8, 1904 | |
| Henry Perry | Elected November 6, 1900 Elected November 3, 1896 | |
| R. E. Shore | Elected November 8, 1892 | |
| Daniel Snibley | Elected November 6, 1888 | |
| R. E. Shore | Elected November 4, 1884 | |
| R. Rucklidge | Elected November 7, 1882 Elected November 2, 1880 Elected September 3, 1879 | |
| John W. Hawkins | Elected September 5, 1877 | |
| John W. Triplett | Elected September 2, 1874 | |
| M. Pomeroy | Elected March 26, 1874 |
