Jefferson County, Idaho

Jefferson County
Entering Jefferson County in Grant, Idaho.
Location within the U.S. state of Idaho
Idaho's location within the U.S.
Coordinates: 43°49′N 112°19′W / 43.82°N 112.31°W / 43.82; -112.31
Country United States
State Idaho
FoundedFebruary 18, 1913
Named forThomas Jefferson
SeatRigby
Largest cityRigby
Area
 • Total1,106 sq mi (2,860 km2)
 • Land1,094 sq mi (2,830 km2)
 • Water12 sq mi (30 km2)  1.1%
Population
 (2020)
 • Total30,891
 • Density28.24/sq mi (10.90/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websitewww.co.jefferson.id.us

Jefferson County is a county in the U.S. state of Idaho. As of the 2020 census, 30,891 people lived there.[1] The county seat and largest city is Rigby.[2] The county was founded in 1913 and named after Thomas Jefferson,[3] the 3rd President of the United States (1801–1809).

Communities

Cities

Unincorporated communities

  • Grant
  • Heise
  • Monteview
  • Terreton

References

  1. "QuickFacts: Jefferson County, Idaho". United States Census Bureau. Retrieved September 25, 2023.
  2. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
  3. "Jefferson County". State of Idaho. Archived from the original on 2009-08-15. Retrieved 2009-05-31.