There are sixteen counties and one independent city in the U.S. state of Nevada. On November 25, 1861, the first Nevada Territorial Legislature formed nine counties. When Nevada joined the United States on October 31, 1864 it had eleven counties.
Alphabetical list
|}
Former counties
Bullfrog County, Nevada, formed in 1987 from part of Nye county. Creation declared unconstitutional and it was ended in 1989. Lake County, Nevada, one of the original nine counties formed in 1861. Renamed Roop county in 1862. Part became Lassen County, California in 1864. The rest was added in 1883 to Washoe county. Ormsby County, Nevada, one of the original nine counties formed in 1861. In 1969 added to Carson City, Nevada. It formed an independent city.