Carson City	510	(Independent city)	1969	Founded 1858, consolidated with rump Ormsby county in 1969.	Carson River, named in turn for Christopher Houston (Kit) Carson (1809.1868), the frontier scout and soldier.	55,274	144 mi²
(373 km²)	State map highlighting Carson City
Churchill County	001	Fallon	1861	Original	Sylvester Churchill (1783.1862), a general in the Mexican.American War.	24,877	4,929 sq mi
(12,766 km2)	State map highlighting Churchill County
Clark County	003	Las Vegas	1909	Lincoln County	William A. Clark (1839.1925), former United States Senator from Montana, and builder of a railroad line through the area.	1,951,269	7,911 sq mi
(20,489 km2)	State map highlighting Clark County
Douglas County	005	Minden	1861	Original	Stephen Arnold Douglas (1813.1861), former United States Senator from Illinois.	46,997	710 sq mi
(1,839 km2)	State map highlighting Douglas County
Elko County	007	Elko	1869	Lander County	A Shoshoni word meaning white woman. It is said, among the very old Shoshoni, that this is where they first saw a white woman.	48,818	17,182 sq mi
(44,501 km2)	State map highlighting Elko County
Esmeralda County	009	Goldfield	1861	Original	Esmeralda Mining District, named in turn for the legend that a massive amount of emeralds was buried in what is now Nevada. Esmeralda is the Spanish and Portuguese word for emerald.	783	3,589 sq mi
(9,295 km2)	State map highlighting Esmeralda County
Eureka County	011	Eureka	1873	Lander County	Greek expression Eureka, meaning I have found it!, in reference to deposits of silver found in the vicinity.	1,987	4,176 sq mi
(10,816 km2)	State map highlighting Eureka County
Humboldt County	013	Winnemucca	1861	Original	Humboldt River, named in turn for Alexander von Humboldt (1769.1859), a German naturalist and explorer.	16,528	9,658 sq mi
(25,014 km2)	State map highlighting Humboldt County
Lander County	015	Battle Mountain	1861	Original	Frederick W. Lander (1821.1862), an American Civil War general and developer of the area.	5,775	5,494 sq mi
(14,229 km2)	State map highlighting Lander County
Lincoln County	017	Pioche	1866	Nye County and territory ceded by Arizona.	Abraham Lincoln (1809.1865), the sixteenth President of the United States.	5,345	10,635 sq mi
(27,545 km2)	State map highlighting Lincoln County
Lyon County	019	Yerington	1861	Original	General Nathaniel Lyon (1818.1861), who was killed in action at the Battle of Wilson's Creek.	51,980	1,994 sq mi
(5,164 km2)	State map highlighting Lyon County
Mineral County	021	Hawthorne	1911	Esmeralda County	Mineral deposits in the area.	4,772	3,757 sq mi
(9,731 km2)	State map highlighting Mineral County
Nye County	023	Tonopah	1864	Esmeralda County	James W. Nye (1815.1876), a governor of the Nevada Territory and U.S. senator from Nevada.	43,946	18,147 sq mi
(47,001 km2)	State map highlighting Nye County
Pershing County	027	Lovelock	1919	Humboldt County	John Joseph (Black Jack) Pershing (1860.1948), the World War I general.	6,753	6,009 sq mi
(15,563 km2)	State map highlighting Pershing County
Storey County	029	Virginia City	1861	Original	Edward Farris Storey (1829.1860), a captain killed at Pyramid Lake in the 1860 Paiute War.	4,010	264 sq mi
(684 km2)	State map highlighting Storey County
Washoe County	031	Reno	1861	Original	The Washo, a small Indian tribe that inhabits the area.	421,407	6,342 sq mi
(16,426 km2)	State map highlighting Washoe County
White Pine County	033	Ely	1869	Lander County	Heavy growth of pine trees in the area, thought to be white pine.	10,030	8,877 sq mi
(22,991 km2)	State map highlighting White Pine County