Postal reference / United States

91031South Pasadena, California

ZIP code 91031 is a United States postal code for South Pasadena, California. Its county association is Los Angeles County. The map reference point is at 34.1161, -118.1503.

State / territory
California
Recorded place name
South Pasadena
County association
Los Angeles
Estimated coordinate
34.1161, -118.1503
View on OpenStreetMap
ZIP prefix
910 · 25 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore California

Browse the other 2,592 ZIP codes recorded for California, sorted by code with place and county.

California directory

Other ZIP codes in South Pasadena, CA

South Pasadena has 2 ZIP codes in the reference dataset.

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
91030South PasadenaCALos Angeles0.4
91105PasadenaCALos Angeles1.5
91802AlhambraCALos Angeles2.0
91804AlhambraCALos Angeles2.0
91896AlhambraCALos Angeles2.0
91899AlhambraCALos Angeles2.0
91801AlhambraCALos Angeles2.1
91102PasadenaCALos Angeles2.2

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup