St. Tammany County, Louisiana ZIP Codes
- ZIP records
16 - Cities represented
12 - Sum of listed ZIP population estimates
272,334
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 | 70433 | Covington | 41,876 |
| 2 | 70458 | Slidell | 39,034 |
| 3 | 70461 | Slidell | 34,808 |
| 4 | 70448 | Mandeville | 26,338 |
| 5 | 70471 | Mandeville | 24,199 |
| 6 | 70435 | Covington | 22,475 |
| 7 | 70460 | Slidell | 21,669 |
| 8 | 70447 | Madisonville | 17,897 |
| 9 | 70452 | Pearl River | 12,650 |
| 10 | 70445 | Lacombe | 9,288 |
Cities in St. Tammany County
- Abita Springs
- Bush
- Covington
- Folsom
- Lacombe
- Madisonville
- Mandeville
- Pearl River
- Saint Benedict
- Slidell
- Sun
- Talisheek
ZIP Directory
- ZIP 70420
- ZIP 70431
- ZIP 70433
- ZIP 70435
- ZIP 70437
- ZIP 70445
- ZIP 70447
- ZIP 70448
- ZIP 70452
- ZIP 70457
- ZIP 70458
- ZIP 70460
- ZIP 70461
- ZIP 70463
- ZIP 70464
- ZIP 70471
Browse all ZIP data for Louisiana
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.