HUMBOLDT COUNTY was created November 25, 1861. COUNTY SEAT: Winnemucca (1873) - incorporated in 1917                       First County Seat was Unionville. ORIGIN OF NAME: Humboldt County was named after the Humboldt River. John C. Fremont named the Humboldt River after a famous German scientist and traveler, Baron von Humboldt. Winnemucca Humboldt County Government Wikipedia County map created by Janice Webb, Webmaster, Nevada Secretary of State