Hammond, Indiana ZIP Codes
- ZIP records
4 - Sum of listed ZIP population estimates
69,406 - Counties represented
1 - Population range
10,597–23,047 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 46323 | Hammond | Lake | 23,047 |
| 2 | 46324 | Hammond | Lake | 21,409 |
| 3 | 46320 | Hammond | Lake | 14,353 |
| 4 | 46327 | Hammond | Lake | 10,597 |
Counties represented
All ZIP Codes in Hammond
Browse all ZIP data for Indiana
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.