Green Grass Flag

Green Grass

County:
Dewey County
County Seat:
No
Area (mi²):
8.133
State:
South Dakota

Green Grass is a CDP located in Dewey County, South Dakota. Green Grass has a 2025 population of 22 . Green Grass is currently declining at a rate of 0% annually and its population has decreased by since the most recent census, which recorded a population of 22 in 2020.

The median age in Green Grass is 21 years: 22.6 years for males, and 18.7 years for females. For every 100 females there are 128.6 males.

22
Total Population
3
Density (mi²)

Green Grass Population

Green Grass Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Green Grass includes 100% Native American, and smaller percentages for and multiracial populations.

Population by Race

Native American (100%)

Race
Population
Percentage (of total)
Native American80100%

Green Grass Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)