Ada County, Idaho Genealogy Guide

Ada County, Idaho (Map It) was created on December 22, 1864 from Boise County. Ada County was named in honor of Ada Riggs, daughter of H. C. Riggs, a member of the Idaho Territorial Legislature. Learn More About State of Idaho History

Ada County is bordered by Boise County (northeast), Elmore County (east), Owyhee County (south), Canyon County (west), Gem County (northwest).

Ada County Cities and Towns include Boise, Eagle, Garden City, Kuna, Meridian, Star.

Ada County, Idaho Courthouse Records

Ada County, Idaho Courthouse
Ada County, ID Courthouse

The Ada County Courthouse is located in Boise, Idaho. Learn More About State of Idaho Court, Tax, Land and Probate Records.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research.

The following dates indicates what vital, land, probate, and court records are in Ada county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.

  • Ada County Clerk, Auditor, Recorders Office has Marriage Records from 1864, Land Records from 1865, Probate Records from 1869 and Court Records from 1865. The Recorder is responsible to keep records of all documents recorded in Adams County. Additionally, the Recorder’s office provides marriage licenses, processes passports and records land documents, including plat maps, surveys, easements, assertions of right-of-way, and some types of liens.

Ada County, Idaho Census Records

Ada County, Idaho Vital Records

Ada County, Idaho Resources

Ada County, Idaho External Links

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