Sparks is a city in Washoe County, Nevada, United States, located east of Reno, Nevada. The 2010 U.S. Census Bureau population count was 90,264. Sparks is often referred to as half of a twin city (i.e., "Reno-Sparks").
According to the United States Census Bureau, the city has a total area of 24 square miles (62 km2), of which 23.9 sq mi (62 km2) of it is land and 0.1 sq mi (0.26 km2) (0.25%) of it is water. Stormwater surface runoff from the city drains into the Truckee River, a sensitive hydrological element because it empties into Pyramid Lake, which has no outlet and is the habitat of two endangered species.
Sparks has a semi-arid climate.