Decatur County, Iowa ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
7,497
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 | 50140 | Lamoni | 2,842 |
| 2 | 50144 | Leon | 2,692 |
| 3 | 50065 | Davis City | 517 |
| 4 | 50103 | Garden Grove | 453 |
| 5 | 50108 | Grand River | 376 |
| 6 | 50067 | Decatur | 354 |
| 7 | 50262 | Van Wert | 263 |
Cities in Decatur 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.