Washington township Flag

Washington township

County:
Douglas County
County Seat:
No
Area (mi²):
29.125
State:
South Dakota

Washington township is located in Douglas County, South Dakota. Washington township has a 2025 population of 135. Washington township is currently growing at a rate of 2.27% annually and its population has increased by 6.3% since the most recent census, which recorded a population of 127 in 2020.

The average household income in Washington township is $124,916 with a poverty rate of 0%. The median age in Washington township is 56.2 years: 57.3 years for males, and 55 years for females.

135
Total Population
5
Density (mi²)
3 2.27%
Growth

Washington township Population

Washington township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Washington township includes 100% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race
Population
Percentage (of total)
White117100%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

Washington township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Washington township's average per capita income is $56,042. Household income levels show a median of $148,750. The poverty rate stands at 0%.

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
Families$150,385$133,474
Married Families$150,385-
Households$148,750$124,916
Non Families--

$56,042

Average Income

$148,750

Median Household Income

0%

Poverty Rate

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)