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 2025 population of 99. Oneota township is currently declining at a rate of -1.98% annually and its population has decreased by -5.71% since the most recent census, which recorded a population of 105 in 2020.

The average household income in Oneota township is $131,995 with a poverty rate of 1.56%.The median age in Oneota township is 37.9 years: 38.1 years for males, and 37.8 years for females.

Demographics

The racial composition of Oneota township includes 97.66% White, and smaller percentages for Asian, Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	125	97.66%
Asian	2	1.56%
Two or more races	1	0.78%

Oneota township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Oneota township's average per capita income is $82,750. Household income levels show a median of $96,250. The poverty rate stands at 1.56%.

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	$96,250	$131,995
Families	-	$140,962
Married Families	-	-
Non Families	-	-

$82,750

Average Income

$96,250

Median Household Income

1.56%

Poverty Rate