Howard County, Iowa ZIP Codes
- ZIP records
6 - Cities represented
6 - Sum of listed ZIP population estimates
10,901
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 | 52136 | Cresco | 5,840 |
| 2 | 50466 | Riceville | 1,972 |
| 3 | 50628 | Elma | 1,423 |
| 4 | 52155 | Lime Springs | 1,110 |
| 5 | 52163 | Protivin | 333 |
| 6 | 52134 | Chester | 223 |
Cities in Howard 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.