Greenbrae, CA demographics:
population, income, and more

Total population
8,447
-1.7% year-over-year change
Median household income
$169,118/yr
4.5% year-over-year change
Housing units
3,938
-0.1% year-over-year change

Greenbrae population

How many people live in Greenbrae

Greenbrae is home to 8,447 residents, according to the most recent Census data. Gender-wise, 45.2% of Greenbrae locals are male, and 54.8% are female.

Total population
8,447
-1.7% year-over-year change
Gender ratio
Male
45.2%
3,816
Female
54.8%
4,630
Value Percent YoY change
Male 3,816 45.2% -0.5%
Female 4,630 54.8% -2.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Greenbrae is 51, with the population distributed as follows: about 16% are children under 15, then 10.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 14.6% of the population, while another 31.6% fall into the 45 to 64 bracket. Finally, around 27.5% are 65 or older.

Median age
50.9
Age breakdown
Under 15
16%
15 to 24
10.4%
25 to 44
14.6%
45 to 64
31.6%
Over 65
27.5%
Value Percent YoY change
Under 15 1,348 16% -8.5%
15 to 24 875 10.4% 9.4%
25 to 44 1,236 14.6% -1.3%
45 to 64 2,665 31.6% -7.8%
Over 65 2,322 27.5% 6.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Greenbrae, 84% of the population are US-born citizens, while 9.5% have gained naturalized citizenship. At the same time, 6.5% of residents are non-citizens. As for race, 78.5% of locals are Caucasian, 0.4% are African American and 6.6% have Asian roots. There’s also a share of 9.3% that includes residents with two or more races.

Citizenship
U.S.-born citizens
84%
Non-U.S.-born citizens
9.5%
Non-citizens
6.5%
Value Percent YoY change
U.S.-born citizens 7,097 84% 2.1%
Non-U.S.-born citizens 799 9.5% -19.5%
Non-citizens 551 6.5% -15.5%
Racial breakdown
White
78.5%
Black or African American
0.4%
American Indian and Alaska Native
0.2%
Asian
6.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
9.3%
Other
5%
Value Percent
White 6,629 78.5%
Black or African American 36 0.4%
American Indian and Alaska Native 15 0.2%
Asian 562 6.6%
Two or more races 786 9.3%
Other 419 5%

Households in Greenbrae

A peek inside Greenbrae households

Greenbrae has 3,663 households, with an average of 2 members in each. Of these, 62.4% are families, while the remaining 37.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
3,663
-1.7% year-over-year change
Average people per household
2
Non-family households
1,378
Family households
2,285
Value Percent YoY change
Non-family households 1,378 37.6% 0.7%
Family households 2,285 62.4% -3.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Greenbrae

The housing landscape of Greenbrae

Greenbrae's housing consists of 3,938 units, with 61% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.4% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 0.8% of the housing landscape.

Housing units
3,938
-0.1% year-over-year change
Housing types
Value Percent
1 unit, detached 2,401 61%
1 unit, attached 93 2.4%
2 units 47 1.2%
3 or 4 units 119 3%
5 to 9 units 391 9.9%
10 to 19 units 294 7.5%
20 to 49 units 265 6.7%
50 or more units 229 5.8%
Mobile home 32 0.8%
Boat, RV, van, etc. 67 1.7%
Homes built since 2020
6
20.0% year-over-year change

The age of buildings in Greenbrae

In Greenbrae, the median construction year is 1963. About 6.5% of homes were built before the 1940s, with another 9.6% going up by 1949. Most development happened in the second half of the 20th century. Then, 2.6% of homes were added from 2000 to 2009, 1.2% between 2010 and 2019, and 0.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 255 6.5% -11.8%
Built between 1940 and 1949 379 9.6% -7.3%
Built between 1950 and 1959 1,031 26.2% 9.7%
Built between 1960 and 1969 1,006 25.6% -0.6%
Built between 1970 and 1979 685 17.4% -2.8%
Built between 1980 and 1989 286 7.3% 36.2%
Built between 1990 and 1999 141 3.6% -6.0%
Built between 2000 and 2009 103 2.6% 19.8%
Built between 2010 and 2019 46 1.2% -66.7%
Built in 2020 or later 6 0.2% 20.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Greenbrae occupancy rates

Out of the 3,663 occupied housing units in Greenbrae, 62.8% are owner-occupied, while 37.2% are lived in by tenants. Meanwhile, 7% of all homes on the local market sit vacant.

Occupied housing units
3,663
-1.7% year-over-year change
Occupancy breakdown
Renter occupied
1,362
Owner occupied
2,302
Value Percent YoY
change
Renter occupied 1,362 37.2% 0.7%
Owner occupied 2,302 62.8% -3.0%
Unoccupied housing units
7.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Greenbrae housing costs

Housing costs in Greenbrae come to a median of $3,434 per month, while tenants specifically pay a median gross rent of $2,712.

Median housing costs per month
$3,434/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Greenbrae
$2,712/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Greenbrae

Greenbrae education at a glance

About 11% of the population in Greenbrae went to high school, while 14.4% pursued college studies. Another 4.8% earned an associate degree and 34.6% hold a bachelor’s. Meanwhile, 34.9% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 13 0.2% -91.7%
High school diploma 753 11% -1.3%
College diploma 987 14.4% -5.5%
Associate degree 332 4.8% 1.8%
Bachelor's degree 2,375 34.6% -0.4%
Graduate degree 2,395 34.9% 9.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Greenbrae

How much people earn in Greenbrae

The average annual household income in Greenbrae was $292,306 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +8.6% change from the previous year. At the same time, the median income stood at $169,118, reflecting a +4.5% shift over the same period.

Average household income in Greenbrae
$292,306/year
8.6% year-over-year change
Median household income in Greenbrae
$169,118/year
4.5% year-over-year change

Greenbrae income by age

In Greenbrae, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $250,001. Those with someone between 45 and 64 in charge, often well established professionally, earn $250,001 overall. Overall, 94.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $250,001 4.0%
45 - 64 $250,001 6.0%
Over 65 $114,250 8.7%
Above poverty level
7,882
Below poverty level
435
Value Percent YoY
change
Above poverty level 7,882 94.8% -1.6%
Below poverty level 435 5.2% -3.1%

Employment in Greenbrae

Workforce and job types in Greenbrae

97.1% of the working population are employed in professional or administrative positions, while 2.9% are in hands-on or service-based jobs. Also, 23.1% run their own businesses, 60% are employed by private companies, and 9.1% work in the public sector.

Workforce demographics

White collar
3,890
Blue collar
117
Value Percent YoY change
White collar 3,890 97.1% -1.4%
Blue collar 117 2.9% -47.1%
Employer type
Self employees
23.1%
Private companies
60%
Governmental workers
9.1%
Not for profit companies
7.8%
Value Percent YoY change
Self employees 925 23.1% -2.2%
Private companies 2,404 60% -6.9%
Governmental workers 366 9.1% 21.6%
Not for profit companies 312 7.8% -6.9%

Transportation in Greenbrae

How people get around in Greenbrae

Commuting methods vary: 86.2% of residents travel by personal vehicle and 3.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 2,054 86.2% -8.1%
Bus or trolleybus 102 4.3% 3.0%
Ferryboat 115 4.8% -38.5%
Bicycle 34 1.4% -34.6%
Walk 79 3.3% -1.2%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Greenbrae by zipcode?

Zipcode Population Number of households Median income Average income
94904 12,815 5,558 $169,118 $302,312

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FAQs about Greenbrae demographics 

What is the total population of Greenbrae?

Greenbrae has a total population of 8,447 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -1.7% compared to a year ago.

What is the gender ratio in Greenbrae?

The gender ratio in Greenbrae is as follows:
  • 45.2% males (3,816 residents)
  • 54.8% females (4,630 residents)

What is the median age in Greenbrae?

The median age in Greenbrae is 50.9.

What is the age distribution of the population in Greenbrae?

The age distribution in Greenbrae is as follows:
  • Under 15: 16% (1,348 residents)
  • Ages 15-24: 10.4% (875 residents)
  • Ages 25-44: 14.6% (1,236 residents)
  • Ages 45-64: 31.6% (2,665 residents)
  • Over 65: 27.5% (2,322 residents)

What is the racial and ethnic makeup of Greenbrae?

The racial and ethnic makeup of Greenbrae is as follows:
  • White: 78.5% (6,629 residents)
  • Black or African American: 0.4% (36 residents)
  • American Indian and Alaska Native: 0.2% (15 residents)
  • Asian: 6.6% (562 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 9.3% (786 residents)
  • Other: 5% (419 residents)

What percentage of the population in Greenbrae are U.S.-born citizens?

U.S.-born citizens represent 84% of the population in Greenbrae.

How many housing units are there in Greenbrae?

There are 3,938 housing units in Greenbrae, reflecting a -0.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Greenbrae and what is the average household size?

Greenbrae has a total of 3,663 households, with an average of 2 people in each.

What is the median household income in Greenbrae?

Greenbrae has a median household income of $169,118, representing a +4.5% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Greenbrae?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 97.1% (3,890 residents)
  • Blue-collar workers: 2.9% (117 residents)

Places of employment:
  • Self-employed: 23.1% (925 residents)
  • Private companies: 60% (2,404 residents)
  • Governmental workers: 9.1% (366 residents)
  • Not-for-profit companies: 7.8% (312 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025