SAN MATEO, CA ZIP Code
| City | SAN MATEO |
| State | California |
| ZIP Codes count | 5 (see all) |
| Post offices count | 3 (see all) |
| Total population | 104,035 (see all) |
ZIP Codes in SAN MATEO, California
The ZIP Codes in SAN MATEO, California fall within the range from 94401 to 94497. SAN MATEO is covered by 5 ZIP Codes: 4 Standard and 1 Unique. Below is the complete list:
94401, 94402, 94403, 94404, 94497
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of SAN MATEO, CA ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 94401 | STANDARD | 35,095 |
| 94402 | STANDARD | 27,188 |
| 94403 | STANDARD | 44,244 |
| 94404 | STANDARD | 36,571 |
| 94497 | UNIQUE | – |
Post offices
25TH AVENUE — Post Office™ 135 W 25TH AVE SAN MATEO, CA 94403-9991 |
SAINT MATTHEW — Post Office™ 210 S ELLSWORTH AVE SAN MATEO, CA 94401-9991 |
SAN MATEO — Post Office™ 1630 S DELAWARE ST SAN MATEO, CA 94402-9998 |
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.
Address example
264 E HILLSDALE BLVD
SAN MATEO CA 94403-2819
SAN MATEO CA 94403-2819
638 NEWLANDS AVE
SAN MATEO CA 94403-5049
SAN MATEO CA 94403-5049
29 PRAGUE ST
SAN MATEO CA 94401-1310
SAN MATEO CA 94401-1310
1549 TARRYTOWN ST
SAN MATEO CA 94402-3821
SAN MATEO CA 94402-3821
74 TILTON TER
SAN MATEO CA 94401-2871
SAN MATEO CA 94401-2871
808 WOODSIDE WAY
SAN MATEO CA 94401-1651
SAN MATEO CA 94401-1651
Map
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Census data for SAN MATEO, CA
Demographic and housing estimates in SAN MATEO, CA
| Total population | 104,035 |
| Male | 51,828 |
| Female | 52,207 |
| Total population | 104,035 |
| Under 5 years | 7,220 |
| 5 to 9 years | 6,476 |
| 10 to 14 years | 5,394 |
| 15 to 19 years | 4,839 |
| 20 to 24 years | 5,370 |
| 25 to 34 years | 16,854 |
| 35 to 44 years | 16,662 |
| 45 to 54 years | 13,823 |
| 55 to 59 years | 5,859 |
| 60 to 64 years | 5,863 |
| 65 to 74 years | 7,936 |
| 75 to 84 years | 4,969 |
| 85 years and over | 2,770 |
| Median age (years) | 38.5 |
| Under 18 years | 22,054 |
| 16 years and over | 83,941 |
| 18 years and over | 81,981 |
| 21 years and over | 78,991 |
| 62 years and over | 19,242 |
| 65 years and over | 15,675 |
| Total population | 104,035 |
| One race | 97,229 |
| White | 58,128 |
| Black or African American | 2,042 |
| American Indian and Alaska Native | 482 |
| Asian | 23,928 |
| Native Hawaiian and Other Pacific Islander | 2,106 |
| Some other race | 10,543 |
| Two or more races | 6,806 |
| Citizen, VOTING AGE 18 and over population | 65,618 |
| Male Citizen, VOTING AGE 18 and over population | 31,786 |
| Female Citizen, VOTING AGE 18 and over population | 33,832 |
Social characteristics in SAN MATEO, CA
| Total households | 38,583 |
| Family households (families) | 24,602 |
| Married-couple family | 19,597 |
| Male householder, no wife present, family | 1,297 |
| Female householder, no husband present, family | 3,708 |
| Nonfamily households | 13,981 |
| Average household size | 2.65 |
| Average family size | 3.25 |
Economic characteristics in SAN MATEO, CA
| Total households | 38,583 |
| Less than $10,000 | 1,133 |
| $10,000 to $14,999 | 820 |
| $15,000 to $24,999 | 1,570 |
| $25,000 to $34,999 | 1,812 |
| $35,000 to $49,999 | 2,622 |
| $50,000 to $74,999 | 4,540 |
| $75,000 to $99,999 | 4,528 |
| $100,000 to $149,999 | 7,228 |
| $150,000 to $199,999 | 4,444 |
| $200,000 or more | 9,886 |
| Median household income (dollars) | 115,167 |
Housing characteristics in SAN MATEO, CA
| Total housing units | 41,226 |
| Occupied housing units | 38,583 |
| Vacant housing units | 2,643 |
| Total housing units | 41,226 |
| 1-unit, detached | 18,356 |
| 1-unit, attached | 3,878 |
| 2 units | 1,116 |
| 3 or 4 units | 1,638 |
| 5 to 9 units | 3,226 |
| 10 to 19 units | 2,994 |
| 20 or more units | 9,992 |
| Mobile home | 26 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 41,226 |
| Built 2014 or later | 1,033 |
| Built 2010 to 2013 | 498 |
| Built 2000 to 2009 | 1,672 |
| Built 1990 to 1999 | 2,548 |
| Built 1980 to 1989 | 4,497 |
| Built 1970 to 1979 | 6,044 |
| Built 1960 to 1969 | 5,746 |
| Built 1950 to 1959 | 9,077 |
| Built 1940 to 1949 | 5,667 |
| Built 1939 or earlier | 4,444 |
| Total housing units | 41,226 |
| 1 room | 1,602 |
| 2 rooms | 2,956 |
| 3 rooms | 6,404 |
| 4 rooms | 7,900 |
| 5 rooms | 7,379 |
| 6 rooms | 6,455 |
| 7 rooms | 4,072 |
| 8 rooms | 2,333 |
| 9 rooms or more | 2,125 |
| Median rooms | 4.7 |
| Total housing units | 41,226 |
| No bedroom | 1,984 |
| 1 bedroom | 8,228 |
| 2 bedrooms | 13,022 |
| 3 bedrooms | 12,634 |
| 4 bedrooms | 4,159 |
| 5 or more bedrooms | 1,199 |
| Occupied housing units | 38,583 |
| Owner-occupied | 21,296 |
| Renter-occupied | 17,287 |
| Average household size of owner-occupied unit | 2.68 |
| Average household size of renter-occupied unit | 2.63 |
| Occupied housing units | 38,583 |
| Moved in 2017 or later | 2,059 |
| Moved in 2015 to 2016 | 4,818 |
| Moved in 2010 to 2014 | 11,619 |
| Moved in 2000 to 2009 | 9,926 |
| Moved in 1990 to 1999 | 4,108 |
| Moved in 1989 and earlier | 6,053 |
| Owner-occupied units | 21,296 |
| Less than $50,000 | 252 |
| $50,000 to $99,999 | 132 |
| $100,000 to $149,999 | 80 |
| $150,000 to $199,999 | 58 |
| $200,000 to $299,999 | 92 |
| $300,000 to $499,999 | 1,373 |
| $500,000 to $999,999 | 8,545 |
| $1,000,000 or more | 10,764 |
| Median (dollars) | 1,007,200 |
| Owner-occupied units | 21,296 |
| Housing units with a mortgage | 15,147 |
| Housing units without a mortgage | 6,149 |
| Occupied units paying rent | 16,999 |
| Less than $500 | 345 |
| $500 to $999 | 689 |
| $1,000 to $1,499 | 1,824 |
| $1,500 to $1,999 | 3,636 |
| $2,000 to $2,499 | 3,335 |
| $2,500 to $2,999 | 2,850 |
| $3,000 or more | 4,320 |
| Median (dollars) | 2,301 |
| No rent paid | 288 |
Data is based on 2018 Census
ZIP Codes for other locations
State for SAN MATEO
California ZIP CodesOther cities in California