This table ranks all 16 ZIP codes in the Hammond, LA MSA by estimated 2022 population, from highest to lowest.
| # | ZIP Code | Place Name | Population (2022) |
|---|---|---|---|
| 1 | ZIP 70454 | Ponchatoula | 32,111 |
| 2 | ZIP 70403 | Hammond | 31,483 |
| 3 | ZIP 70401 | Hammond | 20,748 |
| 4 | ZIP 70422 | Amite | 13,048 |
| 5 | ZIP 70466 | Tickfaw | 10,435 |
| 6 | ZIP 70444 | Kentwood | 9,883 |
| 7 | ZIP 70443 | Independence | 8,139 |
| 8 | ZIP 70437 | Folsom | 7,402 |
| 9 | ZIP 70446 | Loranger | 7,208 |
| 10 | ZIP 70456 | Roseland | 2,389 |
| 11 | ZIP 70455 | Robert | 2,006 |
| 12 | ZIP 70402 | Hammond | 1,943 |
| 13 | ZIP 70465 | Tangipahoa | 638 |
| 14 | ZIP 70442 | Husser | 346 |
| 15 | ZIP 70436 | Fluker | 339 |
| 16 | ZIP 70451 | Natalbany | 69 |