| Zip Code | Primary City | Secondary City | More Information |
| 91310 | Castaic | Santa Clarita | Santa Clarita population stats |
| 91321 | Santa Clarita | Santa Clarita | Santa Clarita population stats |
| 91322 | Newhall | Santa Clarita | Santa Clarita population stats |
| 91351 | Santa Clarita | Santa Clarita | Santa Clarita population stats |
| 91354 | Valencia | Santa Clarita | Santa Clarita population stats |
| 91355 | Valencia | Santa Clarita | Santa Clarita population stats |
| 91380 | Santa Clarita | Valencia | |
| 91381 | Stevenson Ranch | Santa Clarita | Santa Clarita population stats |
| 91381 | Stevenson Ranch | Valencia | |
| 91384 | Castaic | Santa Clarita | Santa Clarita population stats |
| 91385 | Valencia | Santa Clarita | Santa Clarita population stats |
| 91386 | Canyon Country | Santa Clarita | Santa Clarita population stats |
| 91387 | Canyon Country | Santa Clarita | Santa Clarita population stats |
| 91350 | Santa Clarita | Santa Clarita | Santa Clarita population stats |
| 91355 | Valencia | Valencia | |
| 91380 | Santa Clarita | Santa Clarita | Santa Clarita population stats |
| 91382 | Santa Clarita | Santa Clarita | Santa Clarita population stats |
| 91383 | Santa Clarita | Santa Clarita | Santa Clarita population stats |
| 91385 | Valencia | Valencia | |
| 91390 | Santa Clarita | Santa Clarita | Santa Clarita population stats |