Mahaska County, Iowa
Mahaska County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 22,034 (2024)
ID: 126549
|
County | Official County Government |
Contact: AUDITOR
106 S 1ST ST, OSKALOOSA IA 52577
|
|
GUS Population: 11,575 (2024)
ID: 201766
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
220 S MARKET ST, OSKALOOSA IA 52577-3133
|
|
GUS Population: 1,249 (2024)
ID: 208039
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 507, NEW SHARON IA 50207-0507
|
|
CITY OF FREMONT
GUS Population: 688 (2024)
ID: 190204
|
Municipal | Municipal Government Within County |
Contact: FREMONT CITY CLERK
PO BOX 301, FREMONT IA 52561-0301
|
|
CITY OF UNIVERSITY PARK
GUS Population: 476 (2024)
ID: 164493
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 102, UNIVERSITY PARK IA 52595-0102
|
|
CITY OF BEACON
GUS Population: 434 (2024)
ID: 208038
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 127, BEACON IA 52534-9723
|
|
CITY OF ROSE HILL
GUS Population: 156 (2024)
ID: 126665
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
2371 330TH STREET, EDDYVILLE IA 52553
|
|
CITY OF LEIGHTON
GUS Population: 153 (2024)
ID: 164492
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 116, LEIGHTON IA 50143-0116
|
|
CITY OF BARNES CITY
GUS Population: 152 (2024)
ID: 185400
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 98, BARNES CITY IA 50027-0098
|
|
CITY OF KEOMAH VILLAGE
GUS Population: 107 (2024)
ID: 164494
|
Municipal | Municipal Government Within County |
Contact: MAYOR
399 KEOMAH VLG, OSKALOOSA IA 52577-9672
|