Postal Codes

94030 ZIP Code

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ZIP code 94030 covers Millbrae, California, with a population of about 22,589 and a median household income of $157,567.

Population
22,5896,694 per square mile
Median age
45.36.6 points above the US average
Median household income
$157,5671.6× the California median
Poverty rate
6.1%6.3 points below the US average
Typical home value
$2,055,707up 16.8% in five years
Median rent
$3,4011.7× the California median
Degree or higher
50.5%15.5 points above the US average
Homeownership
63.2%1.8 points below the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
536

Where 94030 is

Millbrae, California — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population22,589
Median age45.3
Family households68.9%
Born outside the US40.4%
Speaks a language other than English at home48.8%
White (non-Hispanic)31.9%
Black (non-Hispanic)0.4%
Asian (non-Hispanic)48.8%
Hispanic or Latino12.1%
Veterans3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$157,567
Income per person$76,277
Poverty rate6.1%
Households on SNAP or cash assistance6.3%

Household income distribution

Under $10k2.3%
$10–15k2.3%
$15–20k2.3%
$20–25k2.3%
$25–30k1.2%
$30–35k1.1%
$35–40k4.0%
$40–45k0.8%
$45–50k1.0%
$50–60k3.8%
$60–75k4.0%
$75–100k7.8%
$100–125k8.7%
$125–150k5.7%
$150–200k13.5%
$200k or more39.0%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed11,560
Mean adjusted gross income$173,610
Returns declaring $200,000 or more24.6%
Returns, under $25k18.6%
Returns, $25k–$50k13.1%
Returns, $50k–$75k11.7%
Returns, $75k–$100k9.9%
Returns, $100k–$200k22.1%
Returns, $200k or more24.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,929,700
Median gross rent$3,401
Rent as a share of household income31.1%
Owner-occupied63.2%
Vacant homes6.6%
Median year built1960

What the homes are

Detached house63.7%
Attached house3.4%
2 to 4 units4.6%
5 to 19 units10.9%
20 or more units17%
Mobile home0.1%
Boat, RV or van0.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$2,055,707as of 2026-07
Typical home value, 1 yearup 6.5%
Typical home value, 5 yearsup 16.8%
Typical home value, 10 yearsup 55.9%
Typical asking rent$3,767as of 2026-07
Typical asking rent, 1 yearup 12.1%
Typical asking rent, 5 yearsup 30.1%
Typical home value since 2000
200020132026$2,055,707$523,438

$523,438 in 2000 to $2,055,707 in 2026.

Typical asking rent
201920222026$3,767$2,895

$2,978 in 2019 to $3,767 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.3%
Bachelor's degree or higher50.5%
High school diploma or higher93.2%
Works from home19.9%
Drives to work alone57.9%
Takes public transport9.1%
Commutes 45 minutes or more22.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity19.1% 14.3 pts below the national average of 33.4%
Diagnosed diabetes11% 1 pts below the national average of 12%
Currently smokes7.7% 5.5 pts below the national average of 13.2%
High blood pressure29.8% 4.3 pts below the national average of 34.1%
Fair or poor general health16.1% 4.2 pts below the national average of 20.3%
No health insurance (18–64)5.1% 6.2 pts below the national average of 11.3%
Depression16.3% 5.6 pts below the national average of 21.9%
No leisure-time physical activity20.6% 4.8 pts below the national average of 25.4%
Arthritis20.3% 4.8 pts below the national average of 25.1%
Binge drinking12.5% 3.5 pts below the national average of 16%
Taking blood pressure medication74.9% same as the national average of 74.7%
Cancer (non-skin)7% 0.7 pts below the national average of 7.7%
Current asthma7.9% 2.5 pts below the national average of 10.4%
Coronary heart disease5.3% 0.9 pts below the national average of 6.2%
Routine check-up in past year73% 3.7 pts below the national average of 76.7%
Cholesterol screening88.8% 2.9 pts above the national average of 85.9%
Cognitive disability9.7% 5.1 pts below the national average of 14.8%
Colorectal screening62.7% 1.6 pts below the national average of 64.3%
COPD3.9% 2.7 pts below the national average of 6.6%
Visited a dentist68.5% 7.2 pts above the national average of 61.3%
Any disability23.4% 7.3 pts below the national average of 30.7%
Lacks emotional support27.8% 3 pts above the national average of 24.8%
Food insecurity10.7% 6.4 pts below the national average of 17.1%
Received food stamps7.3% 7 pts below the national average of 14.3%
Hearing disability5.6% 1.1 pts below the national average of 6.7%
High cholesterol38.9% 2.7 pts above the national average of 36.2%
Housing insecurity7.9% 5.9 pts below the national average of 13.8%
Independent living disability5.5% 2.9 pts below the national average of 8.4%
Lacks transport5.5% 3.7 pts below the national average of 9.2%
Loneliness34.8% same as the national average of 34.4%
Mammography use77.4% 1.5 pts above the national average of 75.9%
Poor mental health (14+ days)12.2% 4.6 pts below the national average of 16.8%
Mobility disability10.8% 3.2 pts below the national average of 14%
Poor physical health (14+ days)10.4% 3.1 pts below the national average of 13.5%
Self-care disability2.5% 1.5 pts below the national average of 4%
Utility shut-off threat3.8% 5 pts below the national average of 8.8%
Sleeps under 7 hours28.3% 8.1 pts below the national average of 36.4%
Stroke2.8% 0.6 pts below the national average of 3.4%
All natural teeth lost5.8% 7.2 pts below the national average of 13%
Vision disability3.8% 1.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments536
People employed4,123
Annual payroll$212,268,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 78% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 7 census tracts this ZIP code covers
Expected annual loss87 out of 100
Community resilience96.1 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Earthquake95.5Very High at its worst in this ZIP code
Landslide77.9Relatively Low at its worst in this ZIP code
River flooding54.8Relatively High at its worst in this ZIP code
Wildfire43.4Very Low at its worst in this ZIP code
Tsunami41Very Low at its worst in this ZIP code
Heat wave27.6Relatively Low at its worst in this ZIP code
Coastal flooding21.1Relatively High at its worst in this ZIP code
Lightning16Relatively Low at its worst in this ZIP code
Strong wind9.2Very Low at its worst in this ZIP code
Tornado6.2Very Low at its worst in this ZIP code
Hail4.5Very Low at its worst in this ZIP code
Compared with California and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPCaliforniaUnited States
Median household income$157,567$96,334$78,538
Income per person$76,277$47,977$43,289
Poverty rate6.1%12%12.4%
Median home value$1,929,700$695,400$303,400
Median gross rent$3,401$1,956$1,348
Homeownership63.2%55.8%65%
Bachelor's degree or higher50.5%36.5%35%
Unemployment rate6.3%6.4%5.2%
Works from home19.9%15.5%13.5%
Born outside the US40.4%26.7%13.9%
Median age45.337.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSAN FRANCISCO INTL AP, CA US3.9 km away
Rain in a year20 in

Average high and low by month

January58°F / 44.5°F3.89 in rain
February60.8°F / 46.1°F3.96 in rain
March63.4°F / 47.6°F2.73 in rain
April65.6°F / 49.1°F1.36 in rain
May68.3°F / 51.6°F0.48 in rain
June71.5°F / 53.6°F0.14 in rain
July72.6°F / 55.3°F0 in rain
August73.4°F / 56.4°F0.04 in rain
September74.8°F / 55.9°F0.07 in rain
October72.3°F / 53.4°F0.79 in rain
November64.3°F / 48.5°F2.04 in rain
December58.2°F / 44.6°F4.14 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket66% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Millbrae Elementary School District50% of this ZIP code's land area
San Mateo Union High School District50% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability44more vulnerable than 44% of US census tracts
Socioeconomic status24more vulnerable than 24% of US census tracts
Household characteristics48more vulnerable than 48% of US census tracts
Racial and ethnic minority status77more vulnerable than 77% of US census tracts
Housing type and transport61more vulnerable than 61% of US census tracts
Walkability9.2 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

94128 San Francisco, CA2.5 km away
94066 San Bruno, CA3.6 km away
94011 Burlingame, CA3.6 km away
94010 Burlingame, CA4.8 km away
94083 South San Francisco, CA6.1 km away
94080 South San Francisco, CA6.6 km away
94044 Pacifica, CA7.3 km away
94401 San Mateo, CA7.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

San Mateo County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area3.37 sq mi
Population density6,694 people per sq mi
Latitude, longitude37.6004, -122.4020

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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