Created at statehood from portions of Comanche County, Oklahoma Territory and the Chickasaw Nation, Stephens County was named for John H. Stephens a member of Congress from Texas and staunch advocate of Oklahoma statehood. The first permanent settler, Silas Fitzpatrick, sold his store to William Duncan, for whom the county seat was named in 1892. The county is served by U.S. 81 and S.H. 7, 29 and 53. Duncan Municipal Airport, OKT Railroad, and Oklahoma Transportation-Jefferson Bus Lines provide additional transportation links.

The economy is based on agriculture (wheat, peanuts, cotton, cattle) and petroleum. Duncan, Marlow, and Comanche are the principal municipalities and each offers a wide range of goods and services. Halliburton Oil Field Services began in Duncan, and remains a major employer in the area.
Duncan maintains 144 acres of parks and playgrounds and two public swimming pools. There are golf courses in Duncan (2), Marlow, and Comanche Boating, fishing, camping facilities and 4,000 acres of recreational lands are found at Clear Creek, Duncan, Humphries and Fuqua lakes. The Stephens County Memorial Museum is located at Duncan.

Location: Stephens County is in southern Oklahoma.

Climate: The average precipitation is 45.8 inches yearly in this area. January's average temperature is 42.4 and July's average is 80.6.

County Seat: Duncan

Distances: Duncan to: Lawton - 32 miles Oklahoma City - 87 miles

Land Area: 891 square miles of agricultural and petroleum land