Roger Mills County
County
Washita Battlefield National Historic Site
Location within the U.S. state of Oklahoma
Oklahoma's location within the U.S.
Coordinates: 35°41′N 99°42′W / 35.69°N 99.7°W / 35.69; -99.7
Country	United States
State	Oklahoma
Founded	1891
Named for	Roger Q. Mills
Seat	Cheyenne
Largest town	Cheyenne
Area
• Total	1,146 sq mi (2,970 km2)
• Land	1,141 sq mi (2,960 km2)
• Water	5.3 sq mi (14 km2)  0.40%
Population  (2020)
• Total	3,442
• Density	3.0/sq mi (1.2/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	3rd
Website	www.rogermills.org

Roger Mills County is a county found in the U.S. state of Oklahoma. As of 2020, the population is 3,442.^[1] The county seat of Roger Mills County is Cheyenne.

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