Grass Valley is a census-designated place (CDP) in northeastern Pershing County, Nevada, United States.

[2] Grass Valley is located 10 miles (16 km) south of Winnemucca.

The CDP is named after the valley in which it lies, a 5-mile-wide (8 km) basin between the Sonoma Range to the east and the East Range to the west.

According to the U.S. Census Bureau, the Grass Valley CDP has an area of 34.5 square miles (89.4 km2), all land.

This Pershing County, Nevada state location article is a stub.