Jefferson township Flag

Jefferson township

County:
Union County
County Seat:
No
Area (mi²):
35.446
State:
South Dakota

Jefferson township is located in Union County, South Dakota. Jefferson township has a 2026 population of 93. Jefferson township is currently declining at a rate of -1.06% annually but its population has increased by 2.2% since the most recent census, which recorded a population of 91 in 2020.

The median household income in Jefferson township is $126,250 with a poverty rate of 8.33%. The median age in Jefferson township is 39.6 years: 46.5 years for males, and 37.6 years for females. For every 100 females there are 100.0 males.

93
Total Population
2.6
Density (mi²)
-1 -1.06%
Growth

Jefferson township Population

Jefferson township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202693-1-1.06%
202594-1-1.05%
202495-1-1.04%
20239622.13%
20229400%
20219433.3%
20209100%
201995-1-1.04%
20189622.13%
20179400%
20169422.17%
20159200%
201492-1-1.08%
20139300%
20129333.33%
201190-2-2.17%
20109200%

Median Age

Overall: 39.6 years
Female: 37.6 years
Male: 46.5 years

Jefferson township Adults

There are 51 adults, (14 of whom are seniors) in Jefferson township.

Sex Ratio

Female: 36 (50%)
Male: 36 (50%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White72100%
Race
Population ↓
Percentage (of total)
White72100%

Jefferson township Marital Status

Economics and Income Statistics

Jefferson township 's average per capita income is $51,250. Household income levels show a median of $126,250. The poverty rate stands at 8.33%.

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$126,250$120,900
Families$126,250$120,900
Married Families$126,250-
Non Families--

$51,250

Average Income

$126,250

Median Household Income

8.33%

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)