| Mayor | Term | Political party |
|---|
| Sidney Randolph DeLong | May 17, 1871 – January 6, 1873 | Republican (two one-year terms) |
| James Henry Toole | January 6, 1873 – January 5, 1875 | (two one-year terms) |
| Estevan Ochoa | January 5, 1875 – January 11, 1876 | (replaced by J. B Allen 5/1/76) |
| John Brackett "Pie" Allen | May 1, 1876 – January 1, 1878 | |
| James Henry Toole | January 1, 1878 – January 6, 1880 | (third & fourth terms) |
| Robert N. Leatherwood | January 6, 1880 – January 11, 1881 | Democratic |
| John Sterling Carr | January 11, 1881 – January 10, 1882 | |
| Pinckney R. Tully | January 10, 1882 – January 9, 1883 | |
| Charles M. Strauss | January 9, 1883 – August 5, 1884 | (resigned 8/5/84) |
| Charles T. Etchell | August 5, 1884 – August 7, 1884 | (Mayor Pro Tem) |
| Andrew Cronley | August 7, 1884 – May 5, 1885 | (Mayor Pro Tem) |
| George Rayfield | May 5, 1885 – November 10, 1887 | |
| William E. Stevens | November 10, 1887 – January 7, 1889 | |
| Frederick Maish | January 7, 1889 – January 18, 1893 | |
| William J. Perry | January 18, 1893 – January 7, 1895 | |
| Henry Buehman | January 7, 1895 – January 3, 1899 | Republican |
| Gustav A. Hoff | January 3, 1899 – January 7, 1901 | Democratic |
| Charles J. Schumacher | January 7, 1901 – January 2, 1905 | |
| Levi H. Manning | January 2, 1905 – January 7, 1907 | |
| Charles F. Slack | January 7, 1907 – January 4, 1909 | Republican |
| Ben Heney | January 4, 1909 – January 3, 1910 | Republican |
| Preston N. Jacobus | January 3, 1910 – January 2, 1912 | Republican |
| Ira Erven Huffman | January 2, 1912 – January 4, 1915 | Democratic |
| Johnston Knox Corbett | January 4, 1915 – January 2, 1917 | Republican |
| Olva Clayton Parker | January 2, 1917 – January 7, 1926 | |
| John E. White | January 7, 1926 – January 7, 1929 | |
| W. A. Julian | January 7, 1929 – January 5, 1931 | |
| George K. Smith | January 5, 1931 – May 1, 1933 | |
| Henry O. Jaastad | May 1, 1933 – May 5, 1947 | Democratic |
| Elbert Thompson Houston | May 5, 1947 – June 13, 1950 | |
| J. O. Niemann | June 13, 1950 – May 7, 1951 | (acting) |
| Fred Artemas Emery Jr. | May 7, 1951 – May 2, 1955 | |
| Don Hummel | May 2, 1955 – December 4, 1961 | Democratic |
| Lewis Walter Davis | December 4, 1961 – December 4, 1967 | Republican |
| James Nielson “Jim” Corbett Jr. | December 4, 1967 – December 6, 1971 | Democratic |
| Lewis C. Murphy | December 6, 1971 – December 7, 1987 | Republican |
| Tom Volgy | December 7, 1987 – December 2, 1991 | Democratic |
| George Miller | December 2, 1991 – December 6, 1999 | Democratic |
| Robert E. Walkup | December 6, 1999 – December 11, 2011 | Republican |
| Jonathan Rothschild | December 11, 2011 – December 2, 2019 | Democratic |
| Regina Romero | December 2, 2019 – present | Democratic (incumbent) |
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