County · Idaho

Bonneville County

Bonneville County is a county located in the U.S. state of Idaho. As of the 2020 census, the population was 123,964, 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. Bonneville County was established in 1911 and named after Benjamin Bonneville (1796–1878), a French-born officer in the U.S. Army, fur trapper, and explorer in the American West. Benjamin was the son of Nicholas Bonneville of France, an Illuminati member who had written the "Illuminati Manifesto for World Revolution" in 1792, which played a significant role in the French revolution. Bonneville County is part of the Idaho Falls Metropolitan Statistical Area.

Governance bodies

Board of County Commissioners Primary
governing council

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Cities and towns 6

Reference data (Census of Governments 2022)

Census ID (PID6): 162018
FIPS state: 16
FIPS county: 019
FIPS place: 99019
Census record name: COUNTY OF BONNEVILLE
Mailing address: 605 N CAPITAL AVE, IDAHO FALLS 83402