Post Offices List in Spring Valley City, California:
| La Mesa Post Office | 10174 Austin Dr, Spring Valley, CA 91977 |
| Spring Valley Casa De Oro Post Office | 9805 Campo Rd Ste 165, Spring Valley, CA 91977 |
| La Mesa Post Office | 10174 Austin Dr, Spring Valley, CA 91977 |
| Spring Valley Casa De Oro Post Office | 9805 Campo Rd Ste 165, Spring Valley, CA 91977 |