Oneota township Flag

Oneota township

County:
Brown County
County Seat:
No
Area (mi²):
35.952
State:
South Dakota

Oneota township is located in Brown County, South Dakota. Oneota township has a 2026 population of 102. Oneota township is currently declining at a rate of -0.97% annually and its population has decreased by -4.67% since the most recent census, which recorded a population of 107 in 2020.

The median household income in Oneota township is $93,750 with a poverty rate of 1.87%. The median age in Oneota township is 38.6 years: 38.8 years for males, and 37.9 years for females. For every 100 females there are 127.7 males.

102
Total Population
2.8
Density (mi²)
-1 -0.97%
Growth

Oneota township Population

Oneota township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026102-1-0.97%
2025103-1-0.96%
2024104-1-0.95%
2023105-2-1.87%
202210710.94%
2021106-1-0.93%
202010700%
2019124-1-0.8%
2018125-2-1.57%
201712710.79%
201612610.8%
2015125-1-0.79%
2014126-1-0.79%
201312700%
201212732.42%
201112400%
201012400%

Median Age

Overall: 38.6 years
Female: 37.9 years
Male: 38.8 years

Oneota township Adults

There are 71 adults, (38 of whom are seniors) in Oneota township.

Sex Ratio

Female: 47 (43.9%)
Male: 60 (56.1%)

Demographics

The racial composition of Oneota township includes 98.13% White, and smaller percentages for Asian, Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White10598.13%
Asian10.93%
Two or more races10.93%
Race
Population ↓
Percentage (of total)
White10598.13%
Asian10.93%
Two or more races10.93%

Oneota township Marital Status

Economics and Income Statistics

Oneota township 's average per capita income is $64,375. Household income levels show a median of $93,750. The poverty rate stands at 1.87%.

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$93,750$114,074
Families-$121,553
Married Families--
Non Families--

$64,375

Average Income

$93,750

Median Household Income

1.87%

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)