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The Winter 2019 Quarterly newsletter is now available in digital format. To access it, go to:
2019 Winter Quarterly
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Bonneville County
Established: 2/07/1911

Parent County: Bingham

Co. Seat: Cities
Idaho Falls: Ammon, Iona, Irwin, Osgood, Ririe (part) Swan Valley, Ucon

Established February 7, 1911 by the state legislature from the north and east parts of Bingham County. Named for
Captain B. L. E. Bonneville, of the U. S. Army, who explored throughout the Snake River area in the 1830s. A
settlement developed at the site of 1864, this settlement was known as Idaho Falls after 1891.

County Clerk:
County Courthouse, Idaho Falls, ID 83402-3582 Phone: (208) 529-1350 ext. 1355
Fax: (208) 529-1353

IGS Publication: Winter 1995/Spring 2006