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San Mateo County ZIP Codes

List of ZIP Codes in San Mateo County

The following table lists ZIP Codes associated with San Mateo County, California, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 94002 37.51366 -122.29853 Belmont 27,730 1903.6
2 94005 37.6882 -122.40873 Brisbane 4,718 397.7
3 94010 37.57306 -122.37828 Burlingame 42,794 1093.0
4 94014 37.6907 -122.44769 Daly City 46,269 2795.1
5 94015 37.68121 -122.48074 Daly City 64,121 4377.5
6 94018 37.50603 -122.47321 El Granada 3,404 2269.9
7 94019 37.44826 -122.4023 Half Moon Bay 14,754 95.4
8 94020 37.28473 -122.21969 La Honda 1,745 16.0
9 94021 37.25028 -122.24958 Loma Mar 332 11.7
10 94025 37.45087 -122.1829 Menlo Park 40,230 1856.8
11 94027 37.45399 -122.20313 Atherton 7,030 540.0
12 94028 37.37492 -122.21136 Portola Valley 6,645 148.1
13 94030 37.59969 -122.40343 Millbrae 22,589 2584.7
14 94037 37.55327 -122.49584 Montara 2,897 203.3
15 94038 37.52946 -122.4849 Moss Beach 3,016 195.9
16 94044 37.60544 -122.47993 Pacifica 37,540 960.7
17 94060 37.22297 -122.33572 Pescadero 1,389 7.3
18 94061 37.46136 -122.23731 Redwood City 37,369 3736.9
19 94062 37.42562 -122.29653 Redwood City 25,944 154.9
20 94063 37.49367 -122.20823 Redwood City 34,695 2060.2
21 94065 37.53504 -122.24683 Redwood City 11,620 1956.1
22 94066 37.62539 -122.43229 San Bruno 42,875 2731.6
23 94070 37.49739 -122.27021 San Carlos 30,696 1936.3
24 94074 37.32817 -122.34164 San Gregorio 92 1.5
25 94080 37.65541 -122.42083 South San Francisco 65,036 2467.3
26 94128 37.62197 -122.38388 San Francisco 0 0.0
27 94401 37.57445 -122.31942 San Mateo 35,628 4422.2
28 94402 37.54035 -122.33388 San Mateo 25,498 1948.2
29 94403 37.53844 -122.30454 San Mateo 43,459 2979.0
30 94404 37.5562 -122.26905 San Mateo 35,950 3190.9


About San Mateo County ZIP Codes

San Mateo County in California (CA) is served by approximately 30 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 716,065 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in San Mateo County are located in cities such as San Mateo, Daly City, Redwood City, South San Francisco, San Bruno. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in San Mateo County, California follow the America/Los_Angeles time zone.

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