Valley County, Montana

Valley County
Valley County Courthouse in Glasgow
Location within the U.S. state of Montana
Montana's location within the U.S.
Coordinates: 48°22′N 106°40′W / 48.36°N 106.66°W / 48.36; -106.66
Country United States
State Montana
Founded1893
SeatGlasgow
Largest cityGlasgow
Area
  Total
5,062 sq mi (13,110 km2)
  Land4,926 sq mi (12,760 km2)
  Water136 sq mi (350 km2)  2.7%
Population
 (2020)
  Total
7,578
  Estimate 
(2024)
7,434
  Density1.5/sq mi (0.58/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websitewww.valleycountymt.gov
  • Montana county number 20

Valley County is a county in the U.S. state of Montana. Valley County was created in 1893 with area partitioned from Dawson County. As of the 2020 census, the population was 7,578. Its county seat is Glasgow. It is located on the Canada–United States border with Saskatchewan.