Cassia County, Idaho Genealogy Guide
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Cassia County, Idaho (Map It) was created on February 20, 1879 from Owyhee County. Cassia County was named either for Cassia Creek or a member of the Mormon Battalion, James John Cazier. Learn More About State of Idaho History
Cassia County is bordered by Minidoka County (north), Blaine County (north), Power County (northeast), Oneida County (east), Box Elder County, Utah, Elko County, Nevada (southwest), Twin Falls County (west), Jerome County (northwest).
Cassia County Cities and Towns include Albion, Burley, Declo, Malta, Oakley.
Cassia County, Idaho Courthouse Records
Cassia County, ID Courthouse
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 Cassia 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.
- Cassia County Clerk, Auditor, Recorders Office has Marriage Records from 1874, Land Records from 1875, Probate Records from 1879 and Court Records from 1879. 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.
Cassia County, Idaho Census Records
- Learn More: State of Idaho Census Records
- U.S. Federal Population Schedules: 1880 (free index), 1890 (fragmented), 1900, 1910, 1920, 1930, 1940
- U.S. Federal Census Mortality Schedules: 1880
- Selected U.S. Federal Census Agriculture Schedules: 1880
- Selected U.S. Federal Census Industry Schedules: 1880
- Union Veterans Schedules: 1890
Cassia County, Idaho Vital Records
- Learn More: State of Idaho Vital Records
- Birth and Death Records: from July 1911 to present.
- Marriage and Divorce Records: from May 1947 to present.
- Locations: Idaho Office of Vital Statistics, 450 W. State St., 1st Floor, Boise, ID 83720; (208) 334-5988
- Vital Records Online: USAVital, VitalChek or Social Security Death Index
- Vital Records by Mail: Birth, Marriage, Divorce and Death Certificates Applications.
Cassia County, Idaho Resources
- Cassia County Historical Society / Museum
- Cassia County, Idaho Message Boards
- Cassia County, Idaho Genealogy Forum
- Cassia County, Idaho Mailing lists