DeKalb County, Indiana ZIP Codes
- ZIP records
8 - Cities represented
8 - Sum of listed ZIP population estimates
46,914
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 | 46706 | Auburn | 20,403 |
| 2 | 46738 | Garrett | 8,533 |
| 3 | 46721 | Butler | 4,739 |
| 4 | 46788 | Spencerville | 4,373 |
| 5 | 46793 | Waterloo | 4,104 |
| 6 | 46705 | Ashley | 1,972 |
| 7 | 46785 | Saint Joe | 1,491 |
| 8 | 46730 | Corunna | 1,299 |
Cities in DeKalb County
ZIP Directory
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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.