Bonneville County, Idaho

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Bonneville County
Bonneville County Courthouse
Bonneville County Courthouse
Map of Idaho highlighting Bonneville County
Location within the U.S. state of Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
Coordinates: 43°23′N 111°36′W / 43.38°N 111.6°W / 43.38; -111.6
Country United States
State Idaho
FoundedFebruary 7, 1911
Named forBenjamin Bonneville
SeatIdaho Falls
Largest cityIdaho Falls
 • Total1,901 sq mi (4,920 km2)
 • Land1,866 sq mi (4,830 km2)
 • Water35 sq mi (90 km2)  1.8%
 • Total123,964
 • Density63.8/sq mi (24.6/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd

Bonneville County is a county in the U.S. state of Idaho. As of the 2020 census, 123,964 people lived there,[1] making it the fourth-most populous county in Idaho and the most populous in eastern Idaho. Its county seat and largest city is Idaho Falls.[2]

Communities[change | change source]

Recent suburban development in Bonneville County near Idaho Falls

Cities[change | change source]

Census-designated place[change | change source]

Unincorporated communities[change | change source]

Ghost towns[change | change source]

  • Herman
  • Caribou City

References[change | change source]

  1. "QuickFacts: Bonneville County, Idaho". United States Census Bureau. Retrieved September 25, 2023.
  2. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.