Oskaloosa, Iowa

Oskaloosa, Iowa
Nickname: 
Osky
Motto: 
"Note the Difference"
Location of Oskaloosa, Iowa
Oskaloosa
Location in the United States
Oskaloosa
Oskaloosa (the United States)
Coordinates: 41°17′31″N 92°38′25″W / 41.29194°N 92.64028°W / 41.29194; -92.64028
Country United States
State Iowa
CountyMahaska
IncorporatedFebruary 4, 1875
Area
  Total
8.04 sq mi (20.81 km2)
  Land8.02 sq mi (20.77 km2)
  Water0.01 sq mi (0.04 km2)
Elevation
846 ft (258 m)
Population
 (2020)
  Total
11,558
  Density1,440.97/sq mi (556.38/km2)
Time zoneUTC-6 (Central (CST))
  Summer (DST)UTC-5 (CDT)
ZIP code
52577
Area code641
FIPS code19-59925
GNIS feature ID468480
Websitewww.oskaloosaiowa.org

Oskaloosa is a city in, and the county seat of, Mahaska County, Iowa. In the late nineteenth and early twentieth century, Oskaloosa was a national center of bituminous coal mining. The population was 11,558 in the 2020 U.S. census.