Green Grass, South Dakota

Green Grass, South Dakota
wakpála phežŋ
Location in Dewey County and the state of South Dakota
Coordinates: 45°10′11″N 101°14′48″W / 45.16972°N 101.24667°W / 45.16972; -101.24667
CountryUnited States
StateSouth Dakota
CountyDewey
Area
 • Total
8.13 sq mi (21.06 km2)
 • Land8.13 sq mi (21.06 km2)
 • Water0 sq mi (0.00 km2)
Elevation
1,900 ft (580 m)
Population
 (2020)
 • Total
21
 • Density2.6/sq mi (1/km2)
Time zoneUTC-7 (Mountain (MST))
 • Summer (DST)UTC-6 (MDT)
Area code605
FIPS code46-25900
GNIS feature ID2393027

Green Grass (Lakota: wakpála phežŋ; "creek [of the] grass") is a census-designated place (CDP) in Dewey County, South Dakota, United States. The population was 21 at the 2020 census.

The community takes its name from nearby Green Grass Creek.