Sheridan County, Montana

Sheridan County
Sheridan County Courthouse in Plentywood
Location within the U.S. state of Montana
Montana's location within the U.S.
Coordinates: 48°44′N 104°30′W / 48.73°N 104.5°W / 48.73; -104.5
Country United States
State Montana
FoundedMarch 11, 1913
Named afterPhilip Sheridan
SeatPlentywood
Largest cityPlentywood
Area
  Total
1,706 sq mi (4,420 km2)
  Land1,677 sq mi (4,340 km2)
  Water29 sq mi (80 km2)  1.7%
Population
 (2020)
  Total
3,539
  Estimate 
(2024)
3,448
  Density2.1/sq mi (0.80/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websitewww.co.sheridan.mt.us
  • Montana county number 34

Sheridan County is a county in the U.S. state of Montana. As of the 2020 census, the population was 3,539. Its county seat is Plentywood. Its northern boundary is the Canada–United States border south of Saskatchewan.