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 2026 population of 275. Alton township is currently growing at a rate of 2.23% annually and its population has increased by 13.17% since the most recent census, which recorded a population of 243 in 2020.

The median household income in Alton township is $92,813 with a poverty rate of 18.67%. The median age in Alton township is 57.8 years: 58.5 years for males, and 56.4 years for females. For every 100 females there are 108.3 males.

275
Total Population
7.8
Density (mi²)
6 2.23%
Growth

Alton township Population

Alton township Population

Year ↓
Population
Growth
Annual Change
202627562.23%
202526962.28%
202426393.54%
202325420.79%
202225262.44%
202124631.23%
2020243-1-0.41%
201923710.42%
201823620.85%
201723400%
201623431.3%
201523100%
2014231-1-0.43%
201323210.43%
201223120.87%
201122910.44%
2010227-1-0.44%

Median Age

Overall: 57.8 years
Female: 56.4 years
Male: 58.5 years

Alton township Adults

There are 119 adults, (24 of whom are seniors) in Alton township.

Sex Ratio

Female: 72 (48%)
Male: 78 (52%)

Demographics

The racial composition of Alton township includes 92.67% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White13992.67%
Two or more races117.33%
Race
Population ↓
Percentage (of total)
White13992.67%
Two or more races117.33%

Alton township Marital Status

Economics and Income Statistics

Alton township's average per capita income is $55,938. Household income levels show a median of $92,813. The poverty rate stands at 18.67%.

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$115,278$95,938
Married Families$115,278-
Households$92,813$87,515
Non Families-$38,856

$55,938

Average Income

$92,813

Median Household Income

18.67%

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)