Parent County: Fremont
Co. Seat: Cities
Rigby: Hamer, Lewisville, Menan, Mud Lake, Ririe, Roberts
Established February 18, 1913 with its county seat at Rigby. Named for Thomas Jefferson, third president of the
United States. The first settlers were Mormons who constructed irrigation systems.
County Courthouse, Rigby, ID 83442-0538 Phone: (208) 745-7756 Fax: (208) 745-6636
IGS Publication: Spring 2005