| State: | Arizona |
| District Number: | AL |
| Obsolete: | yes |
| Created: | 1912 |
| Eliminated: | 1949 |
| Years: | 1912-1949 |
| Population Year: | 1940 |
When Arizona became a state in 1912, it was allocated a single seat in the United States House of Representatives, whose member was elected at-large, or statewide.
Arizona was represented by a single member of the House until the 1940 census gave Arizona a second seat. However, both members continued to be elected statewide (on a general ticket) until 1949.
| Years | Cong ress | Seat A | Seat B | |||||
|---|---|---|---|---|---|---|---|---|
| Member | Party | Electoral history | Member | Party | Electoral history | |||
| District created in 1912 | Second seat added in 1943 | |||||||
| nowrap | February 19, 1912 – March 3, 1927 | align=left | Carl Hayden | Democratic | Elected December 12, 1911. Re-elected in 1912. Re-elected in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Retired to run for U.S. senator. | |||
| nowrap | March 4, 1927 – March 4, 1933 | align=left | Lewis W. Douglas | Democratic | Elected in 1926. Re-elected in 1928. Re-elected in 1930. Re-elected in 1932. Resigned to become Director of U.S. Office of Management and Budget. | |||
| nowrap | March 4, 1933 – October 3, 1933 | Vacant | ||||||
| nowrap | October 3, 1933 – January 3, 1937 | align=left | Isabella Greenway | Democratic | Elected to finish Douglas's term. Re-elected in 1934. Retired. | |||
| nowrap | January 3, 1937 – January 3, 1943 | align=left rowspan=2 | John R. Murdock | Democratic | Elected in 1936. Re-elected in 1938. Re-elected in 1940. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Redistricted to and re-elected there. | |||
| nowrap | January 3, 1943 – January 3, 1949 | align=left | Richard F. Harless | Democratic | Elected in 1942. Re-elected in 1944. Re-elected in 1946. Retired to run for Governor of Arizona. | |||
| District eliminated January 3, 1949 | ||||||||