Idaho Census

Federal
Many federal census records are available at the Family History Library, the National Archives, and other federal and state archives. The United States Research Outline provides more detailed information about these records.

The Family History Library has the U.S. federal censuses for the state of Idaho for 1900, 1910, and 1920 but there is no 1890 census. The 1900, 1910, and 1920 censuses have been indexed. The Family History Library has a soundex (phonetic) index on microfilm for the 1900 and 1920 censuses.

Territorial
The area that is presently Idaho was included in censuses of the Oregon Territory (1850), Washington Territory (1860), and Idaho Territory (1870 and 1880). For the 1860 census of Idaho County, see Spokane County, Washington. Parts of southern Idaho were also included in the 1860 and 1870 censuses of Cache County, Utah.

Statewide indexes are available for the 1870 and 1880 censuses in book and microfiche format. A Soundex (phonetic) index is available on microfilm for part of the 1880 census. The censuses and indexes are at the Family History Library.

Mortality schedules exist for the 1870 and 1880 censuses. The Family History Library has the schedules and indexes.