Bonneville County | |
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Coordinates: 43°23′N 111°36′W / 43.38°N 111.6°W | |
Country | United States |
State | Idaho |
Founded | February 7, 1911 |
Named for | Benjamin Bonneville |
Seat | Idaho Falls |
Largest city | Idaho Falls |
Area | |
• Total | 1,901 sq mi (4,920 km2) |
• Land | 1,866 sq mi (4,830 km2) |
• Water | 35 sq mi (90 km2) 1.8% |
Population (2020) | |
• Total | 123,964 |
• Estimate (2022) | 129,496 |
• Density | 63.8/sq mi (24.6/km2) |
Time zone | UTC−7 (Mountain) |
• Summer (DST) | UTC−6 (MDT) |
Congressional district | 2nd |
Website | www |
Bonneville County is a county located in the U.S. state of Idaho. As of the 2020 census, the population was 123,964,[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] 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.[3] Benjamin was the son of Nicholas Bonneville of France, an Illuminati member who had written the "Illuminati Manifesto for World Revolution" in 1792,[4] which played a significant role in the French revolution [citation needed]. Bonneville County is part of the Idaho Falls Metropolitan Statistical Area.