Foster Flag

Foster

County:
Beadle County
County Seat:
No
Area (mi²):
35.983
State:
South Dakota

Foster is located in Beadle County, South Dakota. Foster has a 2025 population of 91 . Foster is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 91 in 2020.

The average household income in Foster is $91,771 with a poverty rate of 23.33%. The median age in Foster is 45.5 years: 24.8 years for males, and 55.6 years for females. For every 100 females there are 200.0 males.

91
Total Population
3
Density (mi²)

Foster Population

Foster Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Foster includes 73.33% White, 26.67% Native American, and smaller percentages for and multiracial populations.

Population by Race

White (73.33%)

Native American (26.67%)

Race
Population
Percentage (of total)
White2273.33%
Native American826.67%

Foster Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Foster's average per capita income is $0. Household income levels show a median of $125,313. The poverty rate stands at 23.33%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Households$125,313$91,771
Families--
Married Families--
Non Families--

$0

Average Income

$125,313

Median Household Income

23.33%

Poverty Rate

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)