Jefferson County, Idaho
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Jefferson County is a county located in the U.S. state of Idaho. As of the 2020 Census, the county's population was 30,891. The county seat and largest city is Rigby. The county was established in 191
Entering Jefferson County in Grant, Idaho
Rigby, Idaho
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Rigby is a city in and the county seat of Jefferson County, Idaho, United States. The population was 5,038 at the 2020 census, up from 3,945 in 2010.
William F. Rigby, namesake of Rigby, Idaho
