Oskaloosa Flag

Oskaloosa

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

Oskaloosa is a city located in Jefferson County, Kansas. Oskaloosa has a 2025 population of 1,066 . It is also the county seat of Jefferson County . Oskaloosa is currently declining at a rate of -0.65% annually and its population has decreased by -2.91% since the most recent census, which recorded a population of 1,098 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. For every 100 females there are 111.2 males.

1.1K
Total Population
1,073
Density (mi²)
-7 -0.65%
Growth

Oskaloosa Population

Oskaloosa Population

Data after 2023 is projected based on recent change

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 and multiracial populations.

Population by Race

White (91.47%)

Two or more races (4.18%)

Other race (3.75%)

Asian (0.34%)

Native American (0.17%)

Black or African American (0.09%)

Race
Population
Percentage (of total)
White1,07291.47%
Two or more races494.18%
Other race443.75%
Asian40.34%
Native American20.17%
Black or African American10.09%

Oskaloosa Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

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)