Alton township Flag

Alton township

County Seat:
No
Area (mi²):
35.167
State:
South Dakota

Alton township is located in Brookings County, South Dakota. Alton township has a 2025 population of 260. Alton township is currently growing at a rate of 0.78% annually and its population has increased by 6.56% since the most recent census, which recorded a population of 244 in 2020.

The average household income in Alton township is $78,559 with a poverty rate of 15.08%. The median age in Alton township is 58.1 years: 58.3 years for males, and 56.9 years for females.

260
Total Population
7
Density (mi²)
2 0.78%
Growth

Alton township Population

Alton township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Alton township includes 93.3% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race
Population
Percentage (of total)
White16793.3%
Two or more races126.7%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%

Alton township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Alton township's average per capita income is $54,500. Household income levels show a median of $59,432. The poverty rate stands at 15.08%.

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$59,432$78,559
Families-$85,598
Married Families--
Non Families-$35,620

$54,500

Average Income

$59,432

Median Household Income

15.08%

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)