Oskaloosa Flag

Oskaloosa

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

Oskaloosa is a city located in Jefferson County, Kansas. Oskaloosa has a 2026 population of 1,073. 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 -2.28% since the most recent census, which recorded a population of 1,098 in 2020.

1.1K
Total Population
1,080
Density (mi²)
-6 -0.56%
Growth

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)