Foster Flag

Foster

County Seat:
No
Area (mi²):
29.299
State:
South Dakota

Foster is located in Hutchinson County, South Dakota. Foster has a 2025 population of 284 . Foster is currently growing at a rate of 2.53% annually and its population has increased by 6.37% since the most recent census, which recorded a population of 267 in 2020.

The average household income in Foster is $111,920 with a poverty rate of 53.33%. The median age in Foster is 32 years: 5.6 years for males, and 87.2 years for females. For every 100 females there are 87.5 males.

284
Total Population
10
Density (mi²)
7 2.53%
Growth

Foster Population

Foster Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (100%)

Race
Population
Percentage (of total)
White120100%

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 $86,750. Household income levels show a median of $113,958. The poverty rate stands at 53.33%.

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$113,958$111,920
Families--
Married Families--
Non Families--

$86,750

Average Income

$113,958

Median Household Income

53.33%

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)