Oskaloosa

County:: Jefferson County
County Seat:: Yes
Area (mi²):: 0.994
State:: Kansas

Oskaloosa is a city located in Jefferson County, Kansas. Oskaloosa has a 2025 population of 1,068. It is also the county seat of Jefferson County. Oskaloosa is currently declining at a rate of -0.56% annually and its population has decreased by -2.64% since the most recent census, which recorded a population of 1,097 in 2020.

The average household income in Oskaloosa is $99,673 with a poverty rate of 14.27%. The median age in Oskaloosa is 36.6 years: 34.6 years for males, and 38.6 years for females.

Demographics

The racial composition of Oskaloosa includes 91.47% White, 3.75% other race, and smaller percentages for Asian, Native American, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Native American

Black or African American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,072	91.47%
Two or more races	49	4.18%
Other race	44	3.75%
Asian	4	0.34%
Native American	2	0.17%
Black or African American	1	0.09%
Native Hawaiian or Pacific Islander	0	0%

Oskaloosa Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Oskaloosa's average per capita income is $49,219. Household income levels show a median of $79,250. The poverty rate stands at 14.27%.

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
Married Families	$101,875	-
Families	$91,932	$114,243
Households	$79,250	$99,673
Non Families	$35,313	$53,863

$49,219

Average Income

$79,250

Median Household Income

14.27%

Poverty Rate