Fremont County was the first county created after Idaho was admitted to the Union. It was organized by the Legislature in 1893 from the northern part of Bingham County. It was named for John C. Fremont, the pathfinder who surveyed the West for the Government.

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2015 Taxes Due

2015 Property taxes are due by Monday June 20th.
Credit Cards and eChecks are accepted.
Taxes can be paid at the Fremont County Treasurer's Office or online by clicking the link below.

Online Taxes or LID Payments

Johnny Sack Cabin at Big Springs

Interested in spending time at the historic Johnny Sack Cabin in Island Park? Beautiful scenery, wildlife viewing and interesting people. Volunteers are needed for the upcoming summer season. Stipends and campsites available. Apply online at

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