Osceola County, Iowa ZIP Codes
- ZIP records
5 - Cities represented
5 - Sum of listed ZIP population estimates
5,917
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 51249 | Sibley | 3,564 |
| 2 | 51354 | Ocheyedan | 965 |
| 3 | 51232 | Ashton | 658 |
| 4 | 51350 | Melvin | 383 |
| 5 | 51345 | Harris | 347 |
Cities in Osceola County
ZIP Directory
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.