Franklin County, Iowa ZIP Codes
- ZIP records
11 - Cities represented
11 - Sum of listed ZIP population estimates
11,623
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 | 50441 | Hampton | 5,450 |
| 2 | 50601 | Ackley | 2,299 |
| 3 | 50475 | Sheffield | 1,446 |
| 4 | 50452 | Latimer | 946 |
| 5 | 50420 | Alexander | 473 |
| 6 | 50633 | Geneva | 423 |
| 7 | 50431 | Coulter | 228 |
| 8 | 50427 | Chapin | 137 |
| 9 | 50227 | Popejoy | 107 |
| 10 | 50605 | Aredale | 63 |
Cities in Franklin 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.