San Luis Obispo, CA ZIP Codes
San Luis Obispo, California has 8 ZIP codes: 4 for street addresses (, , and ), 2 for PO boxes ( and ) and 2 for single organizations.
Your street decides which one you use.
Which San Luis Obispo 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?
San Luis Obispo ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
93403, 93406, 93408 and 93409 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: San Luis Obispo city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All San Luis Obispo ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 93401 | street delivery San Luis Obispo |
| 93403 | PO boxes at the San Luis Obispo post office San Luis Obispo |
| 93405 | street delivery San Luis Obispo |
| 93406 | PO boxes at the Mission San Luis Obispo post office Mission San Luis Obispo |
| 93407 | street delivery San Luis Obispo |
| 93408 | one organization San Luis Obispo |
| 93409 | one organization San Luis Obispo |
| 93410 | street delivery San Luis Obispo |
Why your mail may say San Luis Obispo when you live outside it
San Luis Obispo ZIP codes also cover Avila Beach, Los Ranchos and California Polytechnic State University, so a letter addressed to San Luis Obispo can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. San Luis Obispo County property records show which city you are in.
San Luis Obispo ZIP code questions
What is the main ZIP code for San Luis Obispo?
93401, the ZIP code of the main San Luis Obispo post office at 1655 Dalidio Dr.
Which San Luis Obispo ZIP codes are for PO boxes only?
93403 and 93406. Mail to them goes to boxes at the post office, not to street addresses.
What county is San Luis Obispo in?
San Luis Obispo County.
ZIP codes for towns near San Luis Obispo
More towns near San Luis Obispo: Delano, Bakersfield, Hanford, Oildale, Tulare, Visalia, Ventura, Porterville, Santa Paula.
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