Ada County, Idaho

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Ada County, Idaho
Ada County
James A. McClure Federal Bldg & U.S. Courthouse.JPG
James A. McClure Federal Building and U.S. Courthouse in Boise, Idaho.
Location within Idaho
Location within Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
FoundedDecember 22, 1864
Named forAda Riggs, first pioneer child born in county
Largest cityBoise
 • Total1,060 sq mi (2,745 km2)
 • Land1,053 sq mi (2,727 km2)
 • Water7.9 sq mi (20 km2), 0.7%
Population (est.)
 • (2017)456,849[1]
 • Density434/sq mi (168/km2)
Congressional districts1st, 2nd
Time zoneMountain: UTC−7/−6
Footnotes: 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.