Saint Mary's County, Nevada Genealogy

United States Nevada  Saint Mary's County

Saint Mary's County, Utah Territory was organized 5 January 1856 from western parts of Weber, Desert, Tooele, and Juab counties. It was named for the Saint Mary's River, later called the Humboldt River. This county included all of present-day Nevada between 116° and 118° west longitude, and 39° 30' and 42° north latitude.

Saint Mary's County as part of Utah Territory was discontinued 2 March 1861 when Nevada Territory was created from part of Utah Territory. However, at that time Nevada organized a new Saint Mary's County to the northwest of the old. Part of the old became parts of present day Elko, Eureka, and White Pine counties.

For records of Saint Mary's County (Utah Terrtory), see:


 * Nevada State Archives.
 * Utah State Archives may have a few records from the Utah Territory Saint Mary's County courts and deeds.


 * Some records for old Saint Mary's County, Utah Territory may have been transferred to, or may have been re-recorded in the new counties formed from the old Saint Mary's. See also:
 * Elko County, Nevada
 * Eureka County, Nevada
 * White Pine County, Nevada