Oskaloosa city, Iowa
Official LSAD Designation: Oskaloosa city • Census GEOID: 1959925
• Mahaska County
Oskaloosa city is an incorporated city in Mahaska County, Iowa. According to official records from the Census (2025), Oskaloosa city had an estimated population of 11,493 residents. Official Census Bureau geographic records classify this community under LSAD designation Oskaloosa city (GEOID 1959925).
Local Government Administration U.S. Census Bureau GMAF
City Of Oskaloosa
Municipal
Official Title:
City Clerk
Address:
220 S MARKET ST, OSKALOOSA IA 52577-3133
County Of Mahaska
County
Official Title:
Auditor
Address:
106 S 1ST ST, OSKALOOSA IA 52577
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 11,493 | 2025 |
| Median Household Income | $64,004 | 2020-2024 |
| Median Home Value | $153,300 | 2020-2024 |
| Land Area | 8.06 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).