Union Flag

Union

County:
Spink County
County Seat:
No
Area (mi²):
36.012
State:
South Dakota

Union is located in Spink County, South Dakota. Union has a 2025 population of 46 . Union is currently declining at a rate of 0% annually and its population has decreased by -2.13% since the most recent census, which recorded a population of 47 in 2020.

The average household income in Union is $166,419 with a poverty rate of 2.35%. The median age in Union is 60.4 years: 60.2 years for males, and 63.5 years for females. For every 100 females there are 63.5 males.

46
Total Population
1
Density (mi²)

Union Population

Union Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Union includes 97.65% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

White (97.65%)

Two or more races (2.35%)

Race
Population
Percentage (of total)
White8397.65%
Two or more races22.35%

Union Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Union's average per capita income is $48,750. Household income levels show a median of $120,938. The poverty rate stands at 2.35%.

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$120,938$166,419
Families$120,938$166,339
Married Families$119,219-
Non Families--

$48,750

Average Income

$120,938

Median Household Income

2.35%

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)