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 1,068. It is also the county seat of Jefferson CountyOskaloosa 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.

1.1K
Total Population
1,075
Density (mi²)
-6 -0.56%
Growth

Oskaloosa Population

Demographics

Economics and Income Statistics

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)