Government
Oklahoma's State Capitol is in Oklahoma City, the capital since 1910.Oklahoma is governed under its original constitution of 1907 and later amendments. The constitution provides for direct legislation through the initiative and referendum.
The executive branch is headed by the governor, who is elected for four years and may serve an unlimited number of terms, but no more than two consecutive terms. Other state officials include the lieutenant governor, attorney general, treasurer, auditor and inspector, insurance commissioner, and superintendent of public instruction—all elected for four years. The secretary of state is appointed by the governor. The legislature consists of a senate of 48 members and a house of representatives of 101 members.
| Governors of Oklahoma | |||
| Name | Party | Term | |
| Charles N. Haskell | Democratic | 1907-1911 | |
| Lee Cruce | Democratic | 1911-1915 | |
| R. L. Williams | Democratic | 1915-1919 | |
| James B. A. Robertson | Democratic | 1919-1923 | |
| John C. Walton | Democratic | 1923 | |
| Martin E. Trapp | Democratic | 1923-1927 | |
| Henry S. Johnston | Democratic | 1927-1929 | |
| William J. Holloway | Democratic | 1929-1931 | |
| William H. Murray | Democratic | 1931-1935 | |
| Ernest W. Marland | Democratic | 1935-1939 | |
| Leon C. Phillips | Democratic | 1939-1943 | |
| Robert S. Kerr | Democratic | 1943-1947 | |
| Roy J. Turner | Democratic | 1947-1951 | |
| Johnston Murray | Democratic | 1951-1955 | |
| Raymond D. Gary | Democratic | 1955-1959 | |
| J. Howard Edmondson | Democratic | 1959-1963 | |
| George Nigh | Democratic | 1963 | |
| Henry Bellmon | Republican | 1963-1967 | |
| Dewey F. Bartlett | Republican | 1967-1971 | |
| David Hall | Democratic | 1971-1975 | |
| David L. Boren | Democratic | 1975-1979 | |
| George Nigh | Democratic | 1979-1987 | |
| Henry Bellmon | Republican | 1987-1991 | |
| David Walters | Democratic | 1991-1995 | |
| Frank Keating | Republican | 1995-2003 | |
| Brad Henry | Democratic | 2003- | |
Senators are elected to four-year terms, representatives to two-year terms. The legislature meets annually.
The judiciary is headed by a supreme court of nine justices. Other courts include a court of criminal appeals, court of civil appeals, district courts, and municipal courts.
Oklahoma is divided into 77 counties. It sends two senators and five representatives to the U.S. Congress.

