Home > CA > San Mateo County > Millbrae > Zip 94030

Zip Code 94030 — Millbrae, CA

94030 is a ZIP Code associated with Millbrae, CA, located within San Mateo. The postal region supports an estimated population of 22,689 residents across Data Pending housing units, with a population density of 2,596.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (37.599690, -122.403430)

Data MetricLocal Statistic
Postal / Zip Code94030
Primary CityMillbrae
State / ProvinceCA
CountySan Mateo
Total Population22,689
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2,596.2 people/sq mi
TimezoneAmerica/Los_Angeles

How 94030 Compares

MetricZIP 94030San Mateo CountyCA State Average
Population22,689713,10939,286,245
Median IncomeData PendingN/AN/A
Population Density2,596.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 94128San Francisco1.9 miN/AN/A
Zip 94010Burlingame2.3 mi43,025N/A
Zip 94066San Bruno2.4 mi42,728N/A
Zip 94080South San Francisco4.0 mi64,761N/A
Zip 94044Pacifica4.2 mi37,274N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →