Ada County, Idaho

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Ada County
County
Ada County
James A. McClure Federal Building and U.S. Courthouse in Boise, Idaho.
James A. McClure Federal Building and U.S. Courthouse in Boise, Idaho.
Map of Idaho highlighting Ada 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°27′N 116°14′W / 43.45°N 116.24°W / 43.45; -116.24
Country United States
State Idaho
FoundedDecember 22, 1864
Named forAda Riggs, first pioneer child born in county
SeatBoise
Largest cityBoise
Area
 • Total1,060 sq mi (2,700 km2)
 • Land1,053 sq mi (2,730 km2)
 • Water7.9 sq mi (20 km2)  0.7%%
Population
 • Estimate 
(2017)
456,849[1]
 • Density434/sq mi (168/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional districts1st, 2nd
Websitewww.adaweb.net
County Code: 1A

Ada County is a county in the U.S. state of Idaho. As of the 2010 Census, 392,365 people lived in the county.[2] That was more than any other county in Idaho. The county seat and largest city is Boise.[3] Boise is also the state capital.[4]

Communities[change | change source]

Cities[change | change source]

Census-designated place[change | change source]

References[change | change source]

  1. "American FactFinder". U.S. Census Bureau. March 23, 2018. Retrieved March 23, 2018.
  2. "State & County QuickFacts". United States Census Bureau. Retrieved June 28, 2014.
  3. "Find a County". National Association of Counties. Retrieved 2011-06-07.
  4. Idaho Department of Commerce (2011). "Facts About Idaho". Idaho Department of Commerce. Retrieved 2011-11-10.