Postal reference / United States
93402Los Osos, California
ZIP code 93402 is a United States postal code for Los Osos, California. Its county association is San Luis Obispo County. The map reference point is at 35.3172, -120.8333.
- State / territory
- California
- Recorded place name
- Los Osos
- County association
- San Luis Obispo
- Estimated coordinate
- 35.3172, -120.8333
View on OpenStreetMap - ZIP prefix
- 934 · 53 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 27.747 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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California directoryOther ZIP codes in Los Osos, CA
Los Osos has 2 ZIP codes in the reference dataset.
- 93412San Luis Obispo
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 93412 | Los Osos | CA | San Luis Obispo | 0.4 |
| 93443 | Morro Bay | CA | San Luis Obispo | 3.5 |
| 93442 | Morro Bay | CA | San Luis Obispo | 4.4 |
| 93423 | Atascadero | CA | San Luis Obispo | 8.5 |
| 93405 | San Luis Obispo | CA | San Luis Obispo | 8.8 |
| 93430 | Cayucos | CA | San Luis Obispo | 9.4 |
| 93403 | San Luis Obispo | CA | San Luis Obispo | 10.1 |
| 93406 | San Luis Obispo | CA | San Luis Obispo | 10.1 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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