ZIP code 91031
Where is ZIP code 91031?
South Pasadena, California
Los Angeles County · PO Box only ZIP code
ZIP code 91031 belongs to South Pasadena, California in Los Angeles County. 91031 is a PO Box only ZIP code: it is used for post office boxes at the South Pasadena post office, not for street addresses. It is in the Pacific Time zone and uses area code 626. The closest ZIP codes are 91030 (South Pasadena, 0.4 mi southwest), 91105 (Pasadena, 1.5 mi northwest) and 91802 (Alhambra, 2 mi southeast).
| ZIP code | 91031 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | South Pasadena |
| Also accepted | S Pasadena |
| State | California (CA) |
| County | Los Angeles County |
| Time zone | Pacific Time · now |
| Area code | 626 |
| Coordinates | 34.1161, -118.1503 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 91031
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 91030 | South Pasadena, CA | 0.4 mi SW | Standard |
| 91105 | Pasadena, CA | 1.5 mi NW | Standard |
| 91802 | Alhambra, CA | 2 mi SE | PO Box only |
| 91804 | Alhambra, CA | 2 mi SE | Standard |
| 91896 | Alhambra, CA | 2 mi SE | PO Box only |
| 91899 | Alhambra, CA | 2 mi SE | PO Box only |
| 91801 | Alhambra, CA | 2.1 mi SE | Standard |
| 91102 | Pasadena, CA | 2.2 mi N | PO Box only |
| 91109 | Pasadena, CA | 2.2 mi N | PO Box only |
| 91110 | Pasadena, CA | 2.2 mi N | Unique |
| 91114 | Pasadena, CA | 2.2 mi N | PO Box only |
| 91115 | Pasadena, CA | 2.2 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 91031 or measure the distance to another ZIP code.
How to address mail to 91031
PO BOX 123
SOUTH PASADENA CA 91031
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts S PASADENA as the city name for 91031. Adding the 4-digit ZIP+4 code (91031-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in South Pasadena, CA
All South Pasadena ZIP codes with population and income →
Questions
- What city is ZIP code 91031?
- 91031 is a South Pasadena, California ZIP code. S Pasadena is also accepted as the city name.
- What county is 91031 in?
- ZIP code 91031 is in Los Angeles County, California.
- What time zone is ZIP code 91031 in?
- 91031 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 91031?
- Phone numbers in ZIP code 91031 use area code 626.
- Can I use 91031 for a street address?
- No. 91031 is only for PO Boxes. Street addresses in South Pasadena use 91030.
- What ZIP codes are near 91031?
- The nearest ZIP codes to 91031 are 91030 (South Pasadena, 0.4 miles), 91105 (Pasadena, 1.5 miles), 91802 (Alhambra, 2 miles) and 91804 (Alhambra, 2 miles).