Fremont County, Wyoming

Fremont County
Fremont County Courthouse in Lander
Location within the U.S. state of Wyoming
Wyoming's location within the U.S.
Coordinates: 43°02′N 108°38′W / 43.03°N 108.63°W / 43.03; -108.63
Country United States
State Wyoming
FoundedMarch 5, 1884
Named afterJohn C. Frémont
SeatLander
Largest cityRiverton
Area
  Total
9,266 sq mi (24,000 km2)
  Land9,184 sq mi (23,790 km2)
  Water82 sq mi (210 km2)  0.9%
Population
 (2020)
  Total
39,234
  Estimate 
(2024)
39,721
  Density4.2/sq mi (1.6/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional districtAt-large
Websitewww.fremontcountywy.org

Fremont County is a county in the U.S. state of Wyoming. As of the 2020 United States census, the population was 39,234, making it the fifth-most populous county in Wyoming. Its county seat is Lander. The county was founded in 1884 and is named for John C. Frémont, a general, explorer, and politician. It is roughly the size of the state of Vermont. Fremont County comprises the Riverton, WY Micropolitan Statistical Area.