Grassland Colony Flag

Grassland Colony

County:
Brown County
County Seat:
No
Area (mi²):
0.426
State:
South Dakota

Grassland Colony is a CDP located in Brown County, South Dakota. Grassland Colony has a 2026 population of 44. Grassland Colony is currently growing at a rate of 4.76% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median age in Grassland Colony is 45.3 years: 45.7 years for males, and 0 years for females. For every 100 females there are 114.3 males.

44
Total Population
103
Density (mi²)
2 4.76%
Growth

Grassland Colony Population

Grassland Colony Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20264424.76%
20254237.69%

Median Age

Overall: 45.3 years
Female: 0 years
Male: 45.7 years

Grassland Colony Adults

There are 15 adults, (0 of whom are seniors) in Grassland Colony.

Sex Ratio

Female: 7 (46.7%)
Male: 8 (53.3%)

Demographics

The racial composition of Grassland Colony includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White15100%
Race
Population ↓
Percentage (of total)
White15100%

Grassland Colony Marital Status

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)