City ZIP codes · California
San Pedro, CA ZIP Codes
4 ZIP codes use the postal name San Pedro, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 2 for PO boxes or a single organization. Median household income runs from $76,395 in 90731 to $120,807 in 90732, 1.6 times as much (Census Bureau, ACS 2020-2024). San Pedro's most populous ZIP code is 90731, with 61,944 people (ACS 2020-2024); 0% of its land is in the city of San Pedro.
- ACS2020-24
- Census2020
- GeoNames2026
Where are San Pedro's ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are San Pedro's ZIP codes?
The highest median household income is in 90732 ($120,807), the lowest in 90731 ($76,395). Home values run from $851,000 in 90731 to $857,000 in 90732.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).
All 2 residential ZIP codes of San Pedro
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).
PO Box and single-organization ZIP codes in San Pedro
2 ZIP codes named San Pedro have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.
| ZIP | County |
|---|---|
| 90733 | Los Angeles County |
| 90734 | Los Angeles County |
Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.
Which counties do San Pedro's ZIP codes reach?
San Pedro's residential ZIP codes lie in Los Angeles County.
Which places do San Pedro's ZIP codes cover?
A postal name is not a city limit. By the Census Bureau's places, San Pedro's residential ZIP codes cover 1 other place, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:
Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).
Which first three digits do San Pedro's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of San Pedro starts with 907.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 907 | Los Angeles, CA (SCF 900) | 4 | 31 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.