Weston County, Wyoming

Weston County
Location within the U.S. state of Wyoming
Wyoming's location within the U.S.
Coordinates: 43°50′N 104°34′W / 43.84°N 104.56°W / 43.84; -104.56
Country United States
State Wyoming
FoundedMarch 12, 1890
Named afterJefferson B. Weston
SeatNewcastle
Largest cityNewcastle
Area
  Total
2,400 sq mi (6,216 km2)
  Land2,398 sq mi (6,211 km2)
  Water1.9 sq mi (4.9 km2)  0.08%
Population
 (2020)
  Total
6,838
  Estimate 
(2024)
6,866
  Density2.8/sq mi (1.1/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional districtAt-large
Websitewestongov.com

Weston County is a county in the U.S. state of Wyoming. As of the 2020 United States census, the population was 6,838. Its county seat is Newcastle. Its east boundary line abuts the western boundary of the state of South Dakota.