| Delegate |
Party |
Years |
Cong ress |
Electoral history |
| District created in 1864 |
 Charles Debrille Poston (Tubac) |
Republican |
December 5, 1864 – March 3, 1865 |
38th |
Elected in 1864. Lost re-election. |
| Vacant |
March 4, 1865 – January 17, 1866 |
39th |
Election was held late and Goodwin took months to arrive in Washington. |
 John Noble Goodwin (Prescott) |
Republican |
January 17, 1866 – March 3, 1867 |
Elected September 6, 1865.[4] Retired. |
 Coles Bashford (Tucson) |
Independent[a] |
March 4, 1867 – March 3, 1869 |
40th |
Elected in 1866. Retired to become Secretary of State of Arizona Territory. |
 Richard C. McCormick (Tucson) |
Union[b] |
March 4, 1869 – March 3, 1875 |
41st 42nd 43rd |
Elected June 3, 1868. Re-elected November 8, 1870. Re-elected November 8, 1872.[10] Retired. |
 Hiram Sanford Stevens (Tucson) |
Democratic |
March 4, 1875 – March 3, 1879 |
44th 45th |
Elected in 1874.[11] Re-elected in 1876. Lost re-election. |
John G. Campbell (Prescott) |
Democratic |
March 4, 1879 – March 3, 1881 |
46th |
Elected in 1878. Retired. |
 G. H. Oury (Florence) |
Democratic |
March 4, 1881 – March 3, 1885 |
47th 48th |
Elected in 1880. Re-elected in 1882. Retired. |
Curtis Coe Bean (Prescott) |
Republican |
March 4, 1885 – March 3, 1887 |
49th |
Elected in 1884. Lost re-election. |
 Marcus A. Smith (Tombstone) |
Democratic |
March 4, 1887 – March 3, 1895 |
50th 51st 52nd 53rd |
Elected in 1886. Re-elected in 1888. Re-elected in 1890. Re-elected in 1892. Lost re-election. |
 Oakes Murphy (Phoenix) |
Republican |
March 4, 1895 – March 3, 1897 |
54th |
Elected in 1894. Retired. |
 Marcus A. Smith (Tucson) |
Democratic |
March 4, 1897 – March 3, 1899 |
55th |
Elected in 1896. Retired. |
John Frank Wilson (Prescott) |
Democratic |
March 4, 1899 – March 3, 1901 |
56th |
Elected in 1898. Retired. |
 Marcus A. Smith (Tucson) |
Democratic |
March 4, 1901 – March 3, 1903 |
57th |
Elected in 1900. Retired. |
John Frank Wilson (Prescott) |
Democratic |
March 4, 1903 – March 3, 1905 |
58th |
Elected in 1902. Retired. |
 Marcus A. Smith (Tucson) |
Democratic |
March 4, 1905 – March 3, 1909 |
59th 60th |
Elected in 1904.Re-elected in 1906. Lost re-election. |
 Ralph H. Cameron (Flagstaff) |
Republican |
March 4, 1909 – February 18, 1912 |
61st 62nd |
Re-elected in 1908. Served until statehood. |
| District eliminated in 1912 |