Fremont County, Wyoming

Fremont County, Wyoming
Fremont County Courthouse in Lander
Location within the U.S. state of Wyoming
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
 • Density4.272/sq mi (1.649/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.