Canyon County, Idaho

Canyon County
Boise River and Canal Bridge in Caldwell
Official seal of Canyon County
Map of Idaho highlighting Canyon County
Location within the U.S. state of Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
Coordinates: 43°38′N 116°43′W / 43.63°N 116.71°W / 43.63; -116.71
Country United States
State Idaho
FoundedMarch 7, 1891
SeatCaldwell
Largest cityNampa
Area
 • Total604 sq mi (1,560 km2)
 • Land587 sq mi (1,520 km2)
 • Water16 sq mi (40 km2)  2.7%
Population
 (2020)
 • Total231,105
 • Estimate 
(2022)
251,065 Increase
 • Density394/sq mi (152/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district1st
Websitewww.canyoncounty.org

Canyon County is located in the U.S. state of Idaho. As of the 2020 Census, the population was 231,105,[1] which by 2022 was estimated to have risen to 251,065.[2] making it the second-most populous county in Idaho. The county seat is Caldwell,[3] and its largest city is Nampa. Canyon County is part of the Boise metropolitan area.

  1. ^ "State & County QuickFacts". United States Census Bureau. Retrieved January 15, 2024.
  2. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2022". United States Census Bureau. Retrieved January 15, 2024.
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.