Alpine, CA ZIP codes
Alpine, California has 2 ZIP codes, including 1 PO Box ZIP. They are in San Diego County.
- Population in these ZIPs
- 18,197
- Avg. median income
- $114,200population-weighted
- Typical home value
- $960,300population-weighted
- Metro area
- San Diego-Chula Vista-Carlsbad, CA
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Alpine, CA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 91901 | San Diego County | 18,197 | $114,167 | $960,300 |
| 91903 PO Box | San Diego County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Alpine
- San Ysidro 7 mi
- Descanso 9 mi
- Jamul 9 mi
- Guatay 10 mi
- El Cajon 10 mi
- Lakeside 10 mi
- Dulzura 13 mi
- Pine Valley 13 mi
- Santee 14 mi
- Potrero 15 mi
- Spring Valley 15 mi
- Ramona 16 mi
Frequently asked questions
What county is Alpine, California in?
Alpine ZIP codes are in San Diego County.
Which Alpine ZIP codes are PO Boxes?
91903 is a PO Box or single-organization ZIP code; it has no residential delivery area.