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Please add profiles for those who were born, lived or died in Ada County, Idaho.

Official Website


Ada County was created by the Idaho Territorial Legislature on December 22, 1864, partitioned from Boise County. It is named for Ada Riggs, the daughter of H.C. Riggs, a member of the legislature; he established the county and was a co-founder of Boise. Canyon County, which originally included Payette County and most of Gem County, was partitioned from western Ada County in 1891.

Adjacent Counties

Cities, Counties, Towns and Communities

+Denotes County Seat

  • Blacks Creek
  • +Boise
  • Eagle
  • Garden City
  • Hidden Springs
  • Kuna
  • Meridian
  • Mora
  • Orchard
  • Owyhee
  • Pleasant Valley
  • Regina
  • Sonna
  • Star



The Walter Abbs House

Ada Odd Fellows Temple

Aiken's Hotel

The Marion Allsup House

Anduiza Hotel

Artesian Water Co. Pumphouse & Wells

The Albert Beck House

The R.H. & Jessie Bell House

Boise City National Bank

The Joseph Brown House

The Brunzell House

The Bushnell-Fisher House