Calhoun County, Iowa ZIP Codes
- ZIP records
10 - Cities represented
10 - Sum of listed ZIP population estimates
10,375
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 | 50579 | Rockwell City | 3,034 |
| 2 | 50563 | Manson | 2,505 |
| 3 | 51449 | Lake City | 1,950 |
| 4 | 50575 | Pomeroy | 696 |
| 5 | 50538 | Farnhamville | 661 |
| 6 | 50561 | Lytton | 585 |
| 7 | 51453 | Lohrville | 500 |
| 8 | 50586 | Somers | 272 |
| 9 | 50551 | Jolley | 96 |
| 10 | 50552 | Knierim | 76 |
Cities in Calhoun 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.