Tillman County, Oklahoma

Tillman County, Oklahoma
Tillman County Courthouse in Frederick, March 2025
Location within the U.S. state of Oklahoma
Coordinates: 34°23′N 98°55′W / 34.38°N 98.92°W / 34.38; -98.92
Country United States
State Oklahoma
FoundedNovember 16, 1907
Named afterBenjamin Tillman
SeatFrederick
Largest cityFrederick
Area
 • Total
879 sq mi (2,280 km2)
 • Land871 sq mi (2,260 km2)
 • Water8.1 sq mi (21 km2)  0.9%
Population
 (2020)
 • Total
6,968
 • Density8.00/sq mi (3.09/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
ZIP Codes
73530, 73542, 73546, 73551, 73555, 73570
Area code580
Congressional district4th
Websitewww.tillmancounty.org

Tillman County is a county located in the southwestern part of Oklahoma, United States. As of the 2020 census, the population was 6,968. The county seat is Frederick. The county is named for former South Carolina governor and senator Benjamin Tillman, who had no relation to the county.