Idaho Naturalization and Citizenship

Naturalization records have usually been filed with the clerk of the U.S. District Court in each county courthouse. The records of some counties are in neighboring counties. The Idaho Supreme Court in Boise has some records from 1890.

For naturalization records after September 1906, contact the nearest office of the U.S. Immigration and Naturalization Service at http://www.uscis.gov/portal/site/uscis.