Spring Valley, CA ZIP Codes
Spring Valley, California has 4 ZIP codes: 2 for street addresses ( and ) and 2 for PO boxes ( and ).
Your street decides which one you use.
Which Spring Valley ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Spring Valley ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
91976 and 91979 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: the Spring Valley Census outline.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Spring Valley ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 91976 | PO boxes at the Spring Valley Casa de Oro post office Spring Valley Casa de Oro |
| 91977 | street delivery La Mesa |
| 91978 | street delivery La Mesa |
| 91979 | PO boxes at the La Mesa post office La Mesa |
ZIP codes from nearby towns that reach into Spring Valley
- 91941, mailing town La Mesa, covers 3 percent of Spring Valley
Why your mail may say Spring Valley when you live outside it
Spring Valley ZIP codes also cover La Presa, so a letter addressed to Spring Valley can go to a home outside the town.
The reverse happens too: parts of Spring Valley use 91941, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. San Diego County property records show which city you are in.
Spring Valley ZIP code questions
What is the main ZIP code for Spring Valley?
91977, the ZIP code of the main La Mesa post office at 10174 Austin Dr.
Which Spring Valley ZIP codes are for PO boxes only?
91976 and 91979. Mail to them goes to boxes at the post office, not to street addresses.
What county is Spring Valley in?
San Diego County.
ZIP codes for towns near Spring Valley
More towns near Spring Valley: San Diego, Poway, Encinitas, Escondido, San Marcos, Carlsbad, Vista, Oceanside, Fallbrook.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections