Post Offices List in Newhall City, California:
| Lyons Post Office | 23742 Lyons Ave, Newhall, CA 91321 |
| Newhall Post Office | 24201 The Old Rd, Newhall, CA 91321 |
| Lyons Post Office | 23742 Lyons Ave, Newhall, CA 91321 |
| Newhall Post Office | 24201 The Old Rd, Newhall, CA 91321 |