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Idaho Falls, Idaho

Located in Bonneville County, Idaho, Idaho Falls was established in 1864. Idaho National Laboratory is the nation's lead nuclear energy research facility. The SL-1 accident in 1961 was the first fatal nuclear reactor accident in the U.S.
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Founded 1864 | Population 67,000 | Peak 67,000 (2024) | County Bonneville County

Top 10 Most Important Events for Idaho Falls, Idaho

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1864Founded: Snake River crossing.
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1914Economic Development: Idaho Falls grew through the oil and petroleum industry.
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1949INL: Idaho National Laboratory established.
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1961Nuclear Accident: SL-1 reactor accident kills 3; first fatal U.S. nuclear accident.
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2010Modern Era: Idaho Falls continued to develop as part of the region, with new infrastructure and community amenities.
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Complete Historical Timeline

1864 Culture
Founded
1914 Industry
Economic Development
1949 Science
INL
1961 Disaster
Nuclear Accident
2010 Culture
Modern Era

Did You Know?

1
Idaho National Laboratory is the nation's lead nuclear energy research facility.
2
The SL-1 accident in 1961 was the first fatal nuclear reactor accident in the U.S.
3
Gateway to Yellowstone — about 2 hours away.
4
Idaho Falls is located in Bonneville County, Idaho.
5
Idaho Falls was founded in 1864.

Famous People from Idaho Falls, Idaho

MK
Mary Kornman
Actor, Child Actor · Born Dec 27, 1915 · Died Jun 1, 1973 (age 57)
DC
D. Worth Clark
Lawyer, Politician · Born Apr 2, 1902 · Died Jun 19, 1955 (age 53)
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