| Locality | Post Code |
|---|---|
| Acacia Lake, Cameron | 78520 |
| Adams Gardens, Cameron | 78550 |
| Arroyo, Cameron | 78550 |
| Avondale, Cameron | 78550 |
| Bahia Mar, Cameron | 78578 |
| Bayview, Cameron | 78566 |
| Bluetown, Cameron | 78592 |
| Boca Chica, Cameron | 78520 |
| Brownsville, Cameron | 78520, 78521, 78526 |
| Bville, Cameron | 78520 |
| Carricitos, Cameron | 78586 |
| Colaboz, Cameron | 78586 |
| Combes, Cameron | 78535 |
| Comby, Cameron | 78535 |
| El Jardin, Cameron | 78520 |
| Harlingen, Cameron | 78550, 78552 |
| Indian Lake, Cameron | 78566 |
| Isabel, Cameron | 78578 |
| Kayare, Cameron | 78550 |
| Keller Corner, Cameron | 78520 |
| Kennedy Shores, Cameron | 78520 |
| La Feria, Cameron | 78559 |
| La Paloma, Cameron | 78586 |
| Lafkin, Cameron | 78559 |
| Laguna Heights, Cameron | 78578 |
| Laguna Vista, Cameron | 78578 |