Zip code 91003: Altadena, California
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 91003
91003 is a non-residential zip code for Altadena, California (Los Angeles 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 91003, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Altadena
- State
- California
- County
- Los Angeles County
- Center point
- 34.1897° N, 118.1312° W
- Time zone
- Pacific Time (UTC-8, UTC-7 in summer)
- Zip type
- PO box or unique zip
Zip codes near 91003
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 91001 | Altadena, CA | 0.5 mi | $134,903 |
| 91104 | Pasadena, CA | 1.7 mi | $105,958 |
| 91103 | Pasadena, CA | 2.4 mi | $93,660 |
| 91101 | Pasadena, CA | 3 mi | $87,813 |
| 91102 | Pasadena, CA · PO box | 3 mi | — |
| 91109 | Pasadena, CA · PO box | 3 mi | — |
| 91110 | Pasadena, CA · PO box | 3 mi | — |
| 91114 | Pasadena, CA · PO box | 3 mi | — |
| 91115 | Pasadena, CA · PO box | 3 mi | — |
| 91116 | Pasadena, CA · PO box | 3 mi | — |
| 91117 | Pasadena, CA · PO box | 3 mi | — |
| 91121 | Pasadena, CA · PO box | 3 mi | — |
Questions about 91003
What city is zip code 91003?
91003 is assigned to Altadena, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 91003 in?
91003 is in Los Angeles County, California.
What time zone is 91003 in?
91003 is in Pacific Time.
What zip codes are near 91003?
The closest zip codes to 91003 are 91001, 91104, 91103, 91101, 91102.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 91003, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.