San Mateo County, CA ZIP Codes

31 ZIP codes cover all or part of San Mateo County, California. The Census Bureau counts 742,340 residents in the county, with a median household income of $158,855 and a median home value of $1,559,600. Median household income ranges from $99,680 in 94038 to $250,000+ in 94027. Its largest communities include San Mateo, Daly City, Redwood City, Palo Alto and South San Francisco.

San Mateo County (Census county figures)

MeasureCensus figure
Residents742,340
Households264,419
Median household income$158,855
Median home value$1,559,600
Median age40.9
Median rent$2,922

All 31 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)759,988
Households (sum of ZIP codes)270,591
Median household income, range across ZIP codes$99,680 (94038) to $250,000+ (94027)
Household-weighted average of ZIP medians (an approximation, not a true median)$167,265
Homeowners58.7%
Households with kids under 1830.5%
Moved in the past year11.7%
Carrier routes in EDDM2GO's route library553 routes, 273,987 homes (26 of 31 ZIP codes)

Top facts

Every ZIP code in San Mateo County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
94080South San Francisco64,76121,966$136,733$1,188,70058.9%28.9%7.9%4825,327100% of its land
94015Daly City64,09120,350$127,056$1,165,50060.4%28.4%8.9%3921,500100% of its land
94303Palo Alto46,87914,466$151,609$1,826,20057.8%37.4%11.5%3415,33133% of its land
94014Daly City45,31514,101$122,966$1,036,90059.7%27.1%8.6%2415,184100% of its land
94403San Mateo43,27616,414$174,917$1,746,30052.5%28.8%18.6%3219,297100% of its land
94010Burlingame43,02516,317$196,882$2,000,000+59.6%33.1%11.7%4421,229100% of its land
94066San Bruno42,72815,224$141,272$1,207,50062.1%26.5%10.3%3117,333100% of its land
94025Menlo Park40,72114,619$216,601$2,000,000+58.5%33.0%16.3%4119,529100% of its land
94044Pacifica37,27413,928$160,408$1,249,80067.6%28.1%8.3%——100% of its land
94061Redwood City37,04812,805$146,265$1,900,50054.0%33.9%11.1%2514,672100% of its land
94404San Mateo35,88114,717$192,332$1,714,40051.2%32.6%17.8%2616,134100% of its land
94401San Mateo35,29513,026$122,227$1,184,50043.4%26.9%12.8%2315,076100% of its land
94063Redwood City34,43311,427$116,760$1,042,50031.3%29.6%17.0%1715,034100% of its land
94070San Carlos30,44711,279$240,074$2,000,000+68.6%37.4%10.0%3114,400100% of its land
94002Belmont27,53410,567$203,965$2,000,000+55.0%35.6%14.2%2412,403100% of its land
94062Redwood City25,7599,729$233,262$2,000,000+72.7%28.3%11.0%2510,681100% of its land
94402San Mateo25,47510,125$172,522$2,000,000+58.4%29.8%13.4%2611,700100% of its land
94030Millbrae22,6898,121$163,476$1,934,90060.8%29.2%11.7%189,564100% of its land
94019Half Moon Bay14,4195,221$153,781$1,556,80073.8%28.2%5.5%136,445100% of its land
94065Redwood City11,6734,569$215,955$1,811,80065.9%34.0%12.1%85,531100% of its land
94027Atherton7,0022,236$250,000+$2,000,000+87.6%29.7%14.7%82,531100% of its land
94028Portola Valley6,5312,637$250,000+$2,000,000+81.9%21.2%6.3%82,70281% of its land
94005Brisbane4,6921,912$156,169$1,232,20054.7%24.5%6.8%42,376100% of its land
94018El Granada3,8341,563$230,053$1,430,20083.7%25.0%9.9%——100% of its land
94037Montara2,9171,003$233,826$1,580,70078.2%26.3%2.6%——100% of its land
94038Moss Beach2,683915$99,680$1,123,10099.0%29.4%8.7%1821100% of its land
94020La Honda1,694829$250,000+$995,90070.1%20.1%6.2%1200100% of its land
94060Pescadero1,465362$127,973$1,401,50069.6%27.3%10.1%——100% of its land
94021Loma Mar321128$250,000+$1,073,10071.9%56.3%0.0%142100% of its land
94074San Gregorio12635$250,000+—65.7%65.7%0.0%129100% of its land
94128San Francisco00———————100% of its land

A ZIP code is listed for San Mateo County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Rankings

Price a mailing to San Mateo County ZIP codes

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Frequently asked questions

What ZIP codes are in San Mateo County, CA?
94080, 94015, 94303, 94014, 94403, 94010, 94066, 94025, 94044, 94061, 94404, 94401, 94063, 94070, 94002, 94062, 94402, 94030, 94019, 94065, 94027, 94028, 94005, 94018, 94037, 94038, 94020, 94060, 94021, 94074 and 94128. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of San Mateo County?
742,340 residents in 264,419 households (ACS 5-year estimates, 2020–2024).
What is the median household income in San Mateo County?
$158,855 for the county as a whole. Its ZIP codes range from $99,680 (94038) to $250,000+ (94027).
Which San Mateo County ZIP code has the highest median household income?
94027, at $250,000+, among ZIP codes with at least 1,000 residents. See the full ranking of San Mateo County ZIP codes by income.
How many carrier routes and mailboxes are in San Mateo County?
For the 26 of 31 ZIP codes in EDDM2GO's stored route library: 553 carrier routes reaching 273,987 residential and 21,070 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.