Liberty County, Montana

Liberty County
Liberty County Courthouse in Chester
Location within the U.S. state of Montana
Montana's location within the U.S.
Coordinates: 48°33′N 111°02′W / 48.55°N 111.03°W / 48.55; -111.03
Country United States
State Montana
FoundedFebruary 11, 1920
Named afterLiberty
SeatChester
Largest townChester
Area
  Total
1,447 sq mi (3,750 km2)
  Land1,430 sq mi (3,700 km2)
  Water17 sq mi (40 km2)  1.2%
Population
 (2020)
  Total
1,959
  Estimate 
(2024)
1,934
  Density1.4/sq mi (0.52/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websitewww.co.liberty.mt.us
  • Montana county number 48

Liberty County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 1,959. Its county seat is Chester. The decision to separate the future Liberty County area from the previous Hill and Chouteau counties was carried in a 1919 vote; the organization was authorized to commence in the following February.

The southwestern corner of Liberty County holds Tiber Dam, a popular tourist and recreation area.