Fremont County, Wyoming

Fremont County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF FREMONT GUS Population: 39,721 (2024) ID: 205726	County	Official County Government	Contact: COUNTY CLERK 450 N 2ND ST, RM 220, LANDER WY 82520-2360
CITY OF RIVERTON GUS Population: 10,953 (2024) ID: 209937	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR 816 N FEDERAL BLVD, RIVERTON WY 82501-2913
CITY OF LANDER GUS Population: 7,451 (2024) ID: 136959	Municipal	Municipal Government Within County	Contact: CITY CLERK 240 LINCOLN ST, LANDER WY 82520-2897
TOWN OF DUBOIS GUS Population: 989 (2024) ID: 209936	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 555, DUBOIS WY 82513-0555
TOWN OF SHOSHONI GUS Population: 500 (2024) ID: 177856	Municipal	Municipal Government Within County	Contact: CLERK TREASURER PO BOX 267, SHOSHONI WY 82649-0267
TOWN OF HUDSON GUS Population: 436 (2024) ID: 136958	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 56, HUDSON WY 82515-0056
TOWN OF PAVILLION GUS Population: 229 (2024) ID: 115490	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 278, PAVILLION WY 82523-0278