Fremont County, Wyoming
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.[1] Its county seat is Lander.[2] 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 | |
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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 | |
Country | ![]() |
State | ![]() |
Founded | March 5, 1884 |
Named for | John C. Frémont |
Seat | Lander |
Largest city | Riverton |
Area | |
• Total | 9,266 sq mi (24,000 km2) |
• Land | 9,184 sq mi (23,790 km2) |
• Water | 82 sq mi (210 km2) 0.9%% |
Population (2020) | |
• Total | 39,234 |
• Estimate (2019) | 39,317 |
• Density | 4.2/sq mi (1.6/km2) |
Time zone | UTC−7 (Mountain) |
• Summer (DST) | UTC−6 (MDT) |
Congressional district | At-large |
Website | www |

Fremont County comprises the Riverton, WY Micropolitan Statistical Area.