Treasure County, Montana

Treasure County
Location within the U.S. state of Montana
Montana's location within the U.S.
Coordinates: 46°12′N 107°16′W / 46.2°N 107.27°W / 46.2; -107.27
Country United States
State Montana
Founded1919
SeatHysham
Largest townHysham
Area
  Total
984 sq mi (2,550 km2)
  Land977 sq mi (2,530 km2)
  Water6.6 sq mi (17 km2)  0.7%
Population
 (2020)
  Total
762
  Estimate 
(2024)
739
  Density0.77/sq mi (0.30/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional district2nd
  • Montana county number 33

Treasure County is a county in the U.S. state of Montana. As of the 2020 census, the population was 762, making it the second-least populous county in Montana. Its county seat is Hysham. The county was split off from Rosebud county in 1919 and named Treasure in hopes of drawing in new settlers.