100 Smallest ZIP Codes in the United States by Population in Mahaska County, Iowa
Explore the 100 smallest 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 | 50027 | BARNES CITY | IA | 288 |
| 2 | 52534 | BEACON | IA | 420 |
| 3 | 52543 | CEDAR | IA | 420 |
| 4 | 52595 | UNIVERSITY PARK | IA | 539 |
| 5 | 50143 | LEIGHTON | IA | 546 |
| 6 | 52586 | ROSE HILL | IA | 619 |
| 7 | 52561 | FREMONT | IA | 1,054 |
| 8 | 50207 | NEW SHARON | IA | 2,313 |
| 9 | 52577 | OSKALOOSA | IA | 14,437 |