Fremont County Map, Idaho

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Fremont County, Idaho

Fremont County is tucked up in the eastern corner of Idaho, where potato fields give way to mountains. Island Park, a long volcanic valley, is the big draw.

This county is like a playground for outdoor people. It has fishing, hiking, snowmobiling, and more. Yellowstone’s just next door. The Tetons peek out to the east, looking impossibly perfect. Harriman State Park has fly fishing so good it’s almost unfair.

Ashton, famous for its dog sled races, feels like a step back in time. St. Anthony, the county seat, is all about farming and ranching. There’s a strong Mormon presence in Fremont county.

Category	Details
County Name	Fremont County
County Seat	St. Anthony
Population	15,500
Cities, Towns, and Communities	St. Anthony, Ashton, Island Park, and more
Interstates and Highways	U.S. Route 20, Idaho State Highway 87, Idaho State Highway 32
FIPS Code	16-043
Total Area	2,384 square miles (land: 2,369 sq mi; water: 15 sq mi)
Adjacent Counties	Clark County (West), Jefferson County (Southwest), Madison County (South), Teton County (South), Teton County, Wyoming (East), Gallatin County, Montana (North), Madison County, Montana (North), Beaverhead County, Montana (Northwest)
Time Zone	Mountain Time Zone
State	Idaho
Coordinates	43.8° N, 111.7° W
Etymology	Named after John C. Fremont, an American explorer and politician.
Major Landmarks	Yellowstone National Park (partially), Island Park Reservoir, Harriman State Park
Website	Fremont County Website