Jefferson township Flag

Jefferson township

County:
Union County
County Seat:
No
Area (mi²):
35.849
State:
South Dakota

Jefferson township is located in Union County, South Dakota. Jefferson township has a 2025 population of 177. Jefferson township is currently growing at a rate of 1.72% annually and its population has increased by 5.99% since the most recent census, which recorded a population of 167 in 2020.

The average household income in Jefferson township is $104,324 with a poverty rate of 0%. The median age in Jefferson township is 48.8 years: 37.3 years for males, and 54.5 years for females.

177
Total Population
5
Density (mi²)
3 1.72%
Growth

Jefferson township Population

Jefferson township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Jefferson township includes 82.47% White, 14.43% Black or African American, 3.09% Native American, and smaller percentages for 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)
White16082.47%
Black or African American2814.43%
Native American63.09%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

Jefferson township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Jefferson township's average per capita income is $52,404. Household income levels show a median of $101,250. 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
Married Families$112,614-
Families$105,833$120,770
Households$101,250$104,324
Non Families--

$52,404

Average Income

$101,250

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)