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 2026 population of 183. Jefferson township is currently growing at a rate of 2.23% annually and its population has increased by 8.93% since the most recent census, which recorded a population of 168 in 2020.

The median household income in Jefferson township is $101,250 with a poverty rate of 0%. The median age in Jefferson township is 51.1 years: 37.4 years for males, and 54.4 years for females. For every 100 females there are 94.7 males.

183
Total Population
5.1
Density (mi²)
4 2.23%
Growth

Jefferson township Population

Jefferson township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202618342.23%
202517942.29%
202417542.34%
202317121.18%
202216900%
202116910.6%
202016800%
201916821.2%
201816610.61%
201716510.61%
201616410.61%
201516321.24%
2014161-1-0.62%
201316210.62%
2012161-1-0.62%
201116221.25%
201016000%

Median Age

Overall: 51.1 years
Female: 54.4 years
Male: 37.4 years

Jefferson township Adults

There are 139 adults, (32 of whom are seniors) in Jefferson township.

Sex Ratio

Female: 94 (51.4%)
Male: 89 (48.6%)

Demographics

The racial composition of Jefferson township includes 90.16% White, 7.1% Black or African American, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White16590.16%
Black or African American137.1%
Native American52.73%
Race
Population ↓
Percentage (of total)
White16590.16%
Black or African American137.1%
Native American52.73%

Jefferson township Marital Status

Economics and Income Statistics

Jefferson township 's average per capita income is $52,063. 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
Families$115,625$133,847
Married Families$115,625-
Households$101,250$112,439
Non Families--

$52,063

Average Income

$101,250

Median Household Income

0%

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)