Welcome to Jefferson County! This year we are celebrating our 100th Anniversary. For upcoming events, please click the centennial logo.
If you would like to follow us on facebook, like us at Jefferson County Facebook Page.
Mon. through Fri., 9 am to 5 pm
210 Courthouse Way
Rigby, ID 83442
Jefferson County Brochure
In the Spotlight
Jefferson County Lake 2014 Annual Passes are available at the Clerk's Office.
Photo of Lewisville Town Hall, Jail, and Library built in 1912
To update your information in the CodeRED system, please click on the link. For any questions, please contact Jefferson County's Sheriff's Office at (208) 745-9210.
Jefferson County Interactive Map
Jefferson County Capital Improvement Plan
Jefferson County Comprehensive Plan
Jefferson County Transportation Plan Part I
Jefferson County Transportation Plan Part II