Postal reference / United States
93420Arroyo Grande, California
ZIP code 93420 is a United States postal code for Arroyo Grande, California. Its county association is San Luis Obispo County. The map reference point is at 35.1661, -120.4651.
- State / territory
- California
- Recorded place name
- Arroyo Grande
- County association
- San Luis Obispo
- Estimated coordinate
- 35.1661, -120.4651
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
- 197.429 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 Arroyo Grande, CA
Arroyo Grande has 2 ZIP codes in the reference dataset.
- 93421San Luis Obispo
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 93421 | Arroyo Grande | CA | San Luis Obispo | 7.8 |
| 93433 | Grover Beach | CA | San Luis Obispo | 9.1 |
| 93445 | Oceano | CA | San Luis Obispo | 9.2 |
| 93483 | Grover Beach | CA | San Luis Obispo | 9.3 |
| 93475 | Oceano | CA | San Luis Obispo | 9.4 |
| 93444 | Nipomo | CA | San Luis Obispo | 9.5 |
| 93448 | Pismo Beach | CA | San Luis Obispo | 10.1 |
| 93409 | San Luis Obispo | CA | San Luis Obispo | 10.4 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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