Powder River County, Montana

Powder River County, Montana
Powder River Courthouse in Broadus
Location within the U.S. state of Montana
Coordinates: 45°23′N 105°38′W / 45.38°N 105.64°W / 45.38; -105.64
Country United States
State Montana
FoundedMarch 17, 1919
Named afterPowder River
SeatBroadus
Largest townBroadus
Area
 • Total
3,298 sq mi (8,540 km2)
 • Land3,297 sq mi (8,540 km2)
 • Water0.6 sq mi (1.6 km2)  0.02%
Population
 (2020)
 • Total
1,694
 • Estimate 
(2024)
1,734
 • Density0.5138/sq mi (0.1984/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websitewww.prco.mt.gov
  • Montana county number 09

Powder River County is a county in the U.S. state of Montana. As of the 2020 census, the population was 1,694. Its county seat is Broadus.