Fort Thompson Flag

Fort Thompson

County:
Buffalo County
County Seat:
No
Area (mi²):
10.377
State:
South Dakota

Fort Thompson is a CDP located in Buffalo County, South Dakota. Fort Thompson has a 2025 population of 1,126 . Fort Thompson is currently declining at a rate of -0.88% annually and its population has decreased by -11.69% since the most recent census, which recorded a population of 1,275 in 2020.

The average household income in Fort Thompson is $46,555 with a poverty rate of 40.5%. The median age in Fort Thompson is 29.6 years: 32.1 years for males, and 29.5 years for females. For every 100 females there are 121.5 males.

1.1K
Total Population
109
Density (mi²)
-10 -0.88%
Growth

Fort Thompson Population

Fort Thompson Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Fort Thompson includes 94.44% Native American, 3.79% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Native American (94.44%)

White (3.79%)

Two or more races (1.76%)

Race
Population
Percentage (of total)
Native American1,07194.44%
White433.79%
Two or more races201.76%

Fort Thompson Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Fort Thompson's average per capita income is $33,445. Household income levels show a median of $45,313. The poverty rate stands at 40.5%.

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
Married Families$81,250-
Families$51,000$50,752
Households$45,313$46,555
Non Families$12,222$31,945

$33,445

Average Income

$45,313

Median Household Income

40.5%

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)