ZIP code 91003
Where is ZIP code 91003?
Altadena, California
Los Angeles County · PO Box only ZIP code
ZIP code 91003 belongs to Altadena, California in Los Angeles County. 91003 is a PO Box only ZIP code: it is used for post office boxes at the Altadena post office, not for street addresses. It is in the Pacific Time zone and uses area code 626. The closest ZIP codes are 91001 (Altadena, 0.5 mi west), 91104 (Pasadena, 1.5 mi south) and 91103 (Pasadena, 2.1 mi southwest).
| ZIP code | 91003 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Altadena |
| State | California (CA) |
| County | Los Angeles County |
| Time zone | Pacific Time · now |
| Area code | 626 |
| Coordinates | 34.1897, -118.1312 map |
| 3-digit prefix | 910 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 91003
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 91001 | Altadena, CA | 0.5 mi W | Standard |
| 91104 | Pasadena, CA | 1.5 mi S | Standard |
| 91103 | Pasadena, CA | 2.1 mi SW | Standard |
| 91199 | Pasadena, CA | 3 mi S | Unique |
| 91102 | Pasadena, CA | 3 mi S | PO Box only |
| 91109 | Pasadena, CA | 3 mi S | PO Box only |
| 91110 | Pasadena, CA | 3 mi S | Unique |
| 91114 | Pasadena, CA | 3 mi S | PO Box only |
| 91115 | Pasadena, CA | 3 mi S | PO Box only |
| 91116 | Pasadena, CA | 3 mi S | PO Box only |
| 91117 | Pasadena, CA | 3 mi S | PO Box only |
| 91121 | Pasadena, CA | 3 mi S | Unique |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 91003 or measure the distance to another ZIP code.
How to address mail to 91003
PO BOX 123
ALTADENA CA 91003
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (91003-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Altadena, CA
All Altadena ZIP codes with population and income →
Questions
- What city is ZIP code 91003?
- 91003 is a Altadena, California ZIP code.
- What county is 91003 in?
- ZIP code 91003 is in Los Angeles County, California.
- What time zone is ZIP code 91003 in?
- 91003 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 91003?
- Phone numbers in ZIP code 91003 use area code 626.
- Can I use 91003 for a street address?
- No. 91003 is only for PO Boxes. Street addresses in Altadena use 91001.
- What ZIP codes are near 91003?
- The nearest ZIP codes to 91003 are 91001 (Altadena, 0.5 miles), 91104 (Pasadena, 1.5 miles), 91103 (Pasadena, 2.1 miles) and 91199 (Pasadena, 3 miles).