100 Largest ZIP Codes in the United States by Population in Mahaska County, Iowa
Explore the 100 largest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Mahaska County, Iowa.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 52577 | OSKALOOSA | IA | 14,437 |
| 2 | 50207 | NEW SHARON | IA | 2,313 |
| 3 | 52561 | FREMONT | IA | 1,054 |
| 4 | 52586 | ROSE HILL | IA | 619 |
| 5 | 50143 | LEIGHTON | IA | 546 |
| 6 | 52595 | UNIVERSITY PARK | IA | 539 |
| 7 | 52534 | BEACON | IA | 420 |
| 8 | 52543 | CEDAR | IA | 420 |
| 9 | 50027 | BARNES CITY | IA | 288 |