Zip code 91903: Alpine, California
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 91903
91903 is a non-residential zip code for Alpine, California (San Diego County). It has no delivery area of its own, so the Census Bureau doesn't publish population or housing figures for it. Codes like this are usually assigned to post office boxes, or to a single organization such as a university, hospital, government agency or large company that gets enough mail to need its own zip code.
For a picture of the people who live around 91903, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Alpine
- State
- California
- County
- San Diego County
- Center point
- 32.8351° N, 116.7664° W
- Time zone
- Pacific Time (UTC-8, UTC-7 in summer)
- Zip type
- PO box or unique zip
Zip codes near 91903
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 91901 | Alpine, CA | 2.7 mi | $114,167 |
| 92021 | El Cajon, CA | 6.3 mi | $74,013 |
| 92019 | El Cajon, CA | 7.2 mi | $101,973 |
| 92040 | Lakeside, CA | 8.9 mi | $107,937 |
| 91916 | Descanso, CA | 9.4 mi | $103,438 |
| 91935 | Jamul, CA | 9.7 mi | $151,538 |
| 91931 | Guatay, CA | 11 mi | $63,750 |
| 92022 | El Cajon, CA · PO box | 12 mi | — |
| 92072 | Santee, CA · PO box | 12 mi | — |
| 92020 | El Cajon, CA | 12 mi | $76,032 |
| 92071 | Santee, CA | 13 mi | $113,618 |
| 91917 | Dulzura, CA | 13 mi | — |
Questions about 91903
What city is zip code 91903?
91903 is assigned to Alpine, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 91903 in?
91903 is in San Diego County, California.
What time zone is 91903 in?
91903 is in Pacific Time.
What zip codes are near 91903?
The closest zip codes to 91903 are 91901, 92021, 92019, 92040, 91916.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 91903, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.