Postal Codes

94904 ZIP Code

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ZIP code 94904 covers Greenbrae, California, with a population of about 13,043 and a median household income of $161,875.

Population
13,0432,637 per square mile
Median age
50.511.8 points above the US average
Median household income
$161,8751.7× the California median
Poverty rate
5.3%7.1 points below the US average
Typical home value
$2,299,393up 7.4% in five years
Median rent
$2,5381.3× the California median
Degree or higher
70%35 points above the US average
Homeownership
63.7%1.3 points below the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
463

Where 94904 is

Greenbrae, 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

Population13,043
Median age50.5
Family households63.3%
Born outside the US17.1%
Speaks a language other than English at home21.8%
White (non-Hispanic)73.4%
Black (non-Hispanic)0.6%
Asian (non-Hispanic)6.7%
Hispanic or Latino12.6%
Veterans4%
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$161,875
Income per person$121,702
Poverty rate5.3%
Households on SNAP or cash assistance4.4%

Household income distribution

Under $10k1.2%
$10–15k0.3%
$15–20k1.9%
$20–25k0.6%
$25–30k3.2%
$30–35k1.8%
$35–40k2.7%
$40–45k2.6%
$45–50k1.9%
$50–60k4.9%
$60–75k6.4%
$75–100k8.9%
$100–125k7.3%
$125–150k3.4%
$150–200k10.3%
$200k or more42.6%

Income as declared to the IRS

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

Tax returns filed6,040
Mean adjusted gross income$427,182
Returns declaring $200,000 or more38.1%
Returns, under $25k15.7%
Returns, $25k–$50k10.3%
Returns, $50k–$75k9.6%
Returns, $75k–$100k8.4%
Returns, $100k–$200k17.9%
Returns, $200k or more38.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$2,000,000+
Median gross rent$2,538
Rent as a share of household income37%
Owner-occupied63.7%
Vacant homes5.5%
Median year built1963

What the homes are

Detached house59.1%
Attached house2.4%
2 to 4 units4%
5 to 19 units18.2%
20 or more units12.6%
Mobile home2%
Boat, RV or van1.8%
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$2,299,393as of 2026-07
Typical home value, 1 yearup 5.3%
Typical home value, 5 yearsup 7.4%
Typical home value, 10 yearsup 45.5%
Typical asking rent$5,063as of 2026-07
Typical home value since 2000
200020132026$2,452,975$724,957

$724,957 in 2000 to $2,299,393 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.6%
Bachelor's degree or higher70%
High school diploma or higher97.1%
Works from home35.2%
Drives to work alone47.9%
Takes public transport6.9%
Commutes 45 minutes or more27.2%
Health

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

Obesity20.2% 13.2 pts below the national average of 33.4%
Diagnosed diabetes9.5% 2.5 pts below the national average of 12%
Currently smokes6.9% 6.3 pts below the national average of 13.2%
High blood pressure32.5% 1.6 pts below the national average of 34.1%
Fair or poor general health14.5% 5.8 pts below the national average of 20.3%
No health insurance (18–64)3.8% 7.5 pts below the national average of 11.3%
Depression20.6% 1.3 pts below the national average of 21.9%
No leisure-time physical activity16.1% 9.3 pts below the national average of 25.4%
Arthritis26.4% 1.3 pts above the national average of 25.1%
Binge drinking15.1% 0.9 pts below the national average of 16%
Taking blood pressure medication77.2% 2.5 pts above the national average of 74.7%
Cancer (non-skin)11.6% 3.9 pts above the national average of 7.7%
Current asthma9.5% 0.9 pts below the national average of 10.4%
Coronary heart disease6.3% same as the national average of 6.2%
Routine check-up in past year76.2% 0.5 pts below the national average of 76.7%
Cholesterol screening91.7% 5.8 pts above the national average of 85.9%
Cognitive disability9.7% 5.1 pts below the national average of 14.8%
Colorectal screening68% 3.7 pts above the national average of 64.3%
COPD4.8% 1.8 pts below the national average of 6.6%
Visited a dentist76.6% 15.3 pts above the national average of 61.3%
Any disability25.9% 4.8 pts below the national average of 30.7%
Lacks emotional support19.5% 5.3 pts below the national average of 24.8%
Food insecurity6.6% 10.5 pts below the national average of 17.1%
Received food stamps5.8% 8.5 pts below the national average of 14.3%
Hearing disability6.7% same as the national average of 6.7%
High cholesterol37.6% 1.4 pts above the national average of 36.2%
Housing insecurity6.3% 7.5 pts below the national average of 13.8%
Independent living disability5.8% 2.6 pts below the national average of 8.4%
Lacks transport4.4% 4.8 pts below the national average of 9.2%
Loneliness27.9% 6.5 pts below the national average of 34.4%
Mammography use78.6% 2.7 pts above the national average of 75.9%
Poor mental health (14+ days)13.1% 3.7 pts below the national average of 16.8%
Mobility disability11.8% 2.2 pts below the national average of 14%
Poor physical health (14+ days)11.3% 2.2 pts below the national average of 13.5%
Self-care disability2.7% 1.3 pts below the national average of 4%
Utility shut-off threat3.6% 5.2 pts below the national average of 8.8%
Sleeps under 7 hours28% 8.4 pts below the national average of 36.4%
Stroke3.1% same as the national average of 3.4%
All natural teeth lost4.1% 8.9 pts below the national average of 13%
Vision disability3.4% 2.2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments463
People employed5,691
Annual payroll$529,846,000
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 80.5% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 9 census tracts this ZIP code covers
Expected annual loss87.3 out of 100
Community resilience98.9 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.

Landslide97.6Relatively High at its worst in this ZIP code
Earthquake93.4Very High at its worst in this ZIP code
River flooding80Very High at its worst in this ZIP code
Wildfire76Relatively Moderate at its worst in this ZIP code
Coastal flooding70.4Very High at its worst in this ZIP code
Volcanic activity48.9Very Low at its worst in this ZIP code
Tsunami41.5Relatively Moderate at its worst in this ZIP code
Drought33.8Very Low at its worst in this ZIP code
Heat wave17.5Relatively Low at its worst in this ZIP code
Winter weather13.4Very Low at its worst in this ZIP code
Strong wind9.5Very Low at its worst in this ZIP code
Lightning8.5Relatively Low at its worst in this ZIP code
Tornado6.6Very Low at its worst in this ZIP code
Hail2.2Very 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$161,875$96,334$78,538
Income per person$121,702$47,977$43,289
Poverty rate5.3%12%12.4%
Median home value$2,000,000+$695,400$303,400
Median gross rent$2,538$1,956$1,348
Homeownership63.7%55.8%65%
Bachelor's degree or higher70%36.5%35%
Unemployment rate3.6%6.4%5.2%
Works from home35.2%15.5%13.5%
Born outside the US17.1%26.7%13.9%
Median age50.537.638.7
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 stationKENTFIELD, CA US1.2 km away
Rain in a year44 in

Average high and low by month

January56.6°F / 41.9°F8.77 in rain
February61.1°F / 43.2°F8.72 in rain
March65.1°F / 44.4°F6 in rain
April68.7°F / 46.3°F2.61 in rain
May73.5°F / 49.5°F1.4 in rain
June79.6°F / 52°F0.36 in rain
July82.5°F / 53.2°F0 in rain
August83°F / 53.6°F0.05 in rain
September82.1°F / 52.7°F0.09 in rain
October75.8°F / 50°F1.98 in rain
November63.6°F / 45.4°F4.63 in rain
December56.4°F / 41.7°F9.78 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 supermarket28% of this ZIP code's area
No vehicle and far from a supermarket2% of this ZIP code's area
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 4 school districts, so the address decides which one, not the ZIP code.

Tamalpais Union High School District50% of this ZIP code's land area
Kentfield Elementary School District47.1% of this ZIP code's land area
Ross Elementary School District1.8% of this ZIP code's land area
Larkspur Elementary School District1.1% 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 vulnerability27more vulnerable than 27% of US census tracts
Socioeconomic status16more vulnerable than 16% of US census tracts
Household characteristics40more vulnerable than 40% of US census tracts
Racial and ethnic minority status31more vulnerable than 31% of US census tracts
Housing type and transport49more vulnerable than 49% of US census tracts
Walkability10.2 out of 20Below average
Nearby ZIP codes

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

94939 Larkspur, CA1.2 km away
94977 Larkspur, CA1.5 km away
94914 Kentfield, CA1.9 km away
94957 Ross, CA2.3 km away
94976 Corte Madera, CA2.6 km away
94912 San Rafael, CA2.9 km away
94913 San Rafael, CA2.9 km away
94901 San Rafael, CA3.3 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.

Marin County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area4.95 sq mi
Water area0.1 sq mi
Population density2,637 people per sq mi
Latitude, longitude37.9479, -122.5363

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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