City ZIP codes · California
Redwood City, CA ZIP Codes
5 ZIP codes use the postal name Redwood City, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 4 residential and 1 for PO boxes or a single organization. Median household income runs from $116,760 in 94063 to $233,262 in 94062, 2.0 times as much (Census Bureau, ACS 2020-2024). Redwood City's most populous ZIP code is 94061, with 37,048 people (ACS 2020-2024); 84% of its land is in the city of Redwood City.
- ACS2020-24
- Census2020
- GeoNames2026
Where are Redwood City's ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are Redwood City's ZIP codes?
The highest median household income is in 94062 ($233,262), the lowest in 94063 ($116,760). Home values run from $1,042,500 in 94063 to $2,000,000 or more in 94062.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).
All 4 residential ZIP codes of Redwood City
| County | |||||
|---|---|---|---|---|---|
| 94061 | San Mateo County | 37,048 | 9,595 | $146k | $1.9M |
| 94063 | San Mateo County | 34,433 | 5,296 | $117k | $1.04M |
| 94062 | San Mateo County | 25,759 | 398 | $233k | $2M+ |
| 94065 | San Mateo County | 11,673 | 5,088 | $216k | $1.81M |
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 Redwood City
1 ZIP code named Redwood City has 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 |
|---|---|
| 94064 | San Mateo County |
Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.
Which counties do Redwood City's ZIP codes reach?
Redwood City's residential ZIP codes lie in San Mateo County.
Which places do Redwood City's ZIP codes cover?
A postal name is not a city limit. By the Census Bureau's places, Redwood City's residential ZIP codes cover Redwood City itself and 3 other places, 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 Redwood City'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 Redwood City starts with 940.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 940 | San Francisco, CA (SCF 940) | 5 | 45 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.