Bonneville County Map, Idaho

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Bonneville County, Idaho

Bonneville County is eastern Idaho’s urban hub, anchored by Idaho Falls. The Snake River runs through town, with a scenic greenbelt and that famous waterfall. It’s a jumping-off point for Yellowstone trips.
The Idaho National Laboratory nearby brings in an educated workforce. You’ll see a mix of cowboy hats and lab coats around town. The county stretches from farmland to high mountain peaks. Outdoor recreation is huge. Skiing at Kelly Canyon, fishing on the South Fork, hiking in the Caribou-Targhee National Forest.
Mormon influence is quite strong here compared to other counties. You’ll see a lot of big families and fewer bars than you might expect. Potatoes are still king in the rural parts. Idaho Falls is booming, with new subdivisions popping up like weeds.
Category | Details |
---|---|
County Name | Bonneville County |
County Seat | Idaho Falls |
Population | 140,000 |
Cities, Towns, and Communities | Idaho Falls, Ammon, Iona, Ucon, Ririe, and more |
Interstates and Highways | Interstate 15, U.S. Route 20, Idaho State Highway 26, Idaho State Highway 91 |
FIPS Code | 16-019 |
Total Area | 1,911 square miles (land: 1,877 sq mi; water: 34 sq mi) |
Adjacent Counties | Madison County (North), Teton County (North), Teton County, Wyoming (Northeast), Lincoln County, Wyoming (Southeast), Caribou County (South), Bingham County (West), Jefferson County (Northwest) |
Time Zone | Mountain Time Zone |
State | Idaho |
Coordinates | 43.5° N, 112.0° W |
Etymology | Named after explorer Benjamin Bonneville. |
Major Landmarks | Idaho Falls Zoo, Idaho Falls River Walk, Snake River, Teton Mountain Range |
Website | Bonneville County Website |
Bonneville County Topographic Map
This Bonneville County topographic map has jagged peaks and wide valleys. Idaho Falls is the only major city that sits in the west of the map. Check out the contours of this county with our zoom tool.

Bonneville County Satellite Map
Our satellite map of Bonneville County is a mix of city vibes, but mostly rugged outdoors. Idaho Falls sits along the Snake River, with its parks and waterfalls. Off to the east, the Teton Range rises up, their snowy peaks catching the sunlight.

Bonneville County Blank Map
Bonneville County’s outline is long and narrow in the east-west direction. It has a straight edge on the north side, sharing a border with 3 other Idaho counties. Its eastern boundary is a state boundary with Wyoming.

Neighboring Counties
Here are the 7 neighboring counties of Bonneville County:
Idaho County Map
Discover Idaho’s diverse counties. Rugged mountains. Rolling plains. Explore Boise’s heart, Teton’s wild beauty, and Shoshone’s untamed forests. Grab an Idaho County map and uncover its best-kept secrets