ZIP Code 91903: Alpine, CA
County: San Diego County
Coordinates: 32.83510, -116.76640
ZIP Type: Standard
Time Zone: Pacific Time (PT)
Explore detailed information for ZIP code 91903 in Alpine, CA. We include verified county details for San Diego County plus key geographic references used for mapping and logistics.
| Primary City | Alpine |
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| ZIP Code | 91903 |
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| County | San Diego County |
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| State | CA |
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| Latitude / Longitude | 32.83510, -116.76640 |
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| ZIP Type | Standard |
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| Time Zone | Pacific Time (PT) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 91903 (not an exact boundary).
Geographic & Administrative Context
For mapping and verification, 91903 is commonly represented around 32.83510, -116.76640. These coordinates help identify the general area within San Diego County, CA.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 91903 for mail delivery and general location reference in
San Diego County,
CA.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Alpine.
Related ZIP Codes (Nearby)
Explore other postal codes near Alpine within CA.
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Frequently Asked Questions
What is the primary city for ZIP code 91903?
The primary city for this ZIP code is Alpine, located in CA.
In which county is 91903 located?
ZIP code 91903 is situated within San Diego County, CA.
What are the coordinates for 91903?
The approximate center point is 32.83510 (Latitude) and -116.76640 (Longitude).
Is ZIP code 91903 active?
This page lists ZIP 91903 as Listed based on the latest refresh date shown above.
Does ZIP 91903 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08