Millbrae, CA demographics:
population, income, and more

Total population
22,689
0.4% year-over-year change
Median household income
$163,476/yr
3.8% year-over-year change
Housing units
8,705
1.6% year-over-year change

Millbrae population

How many people live in Millbrae

Millbrae is home to 22,689 residents, according to the most recent Census data. Gender-wise, 48.4% of Millbrae locals are male, and 51.6% are female.

Total population
22,689
0.4% year-over-year change
Gender ratio
Male
48.4%
10,989
Female
51.6%
11,700
Value Percent YoY change
Male 10,989 48.4% -0.3%
Female 11,700 51.6% 1.2%
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 Millbrae is 44, with the population distributed as follows: about 15.4% are children under 15, then 10.3% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.5% of the population, while another 28.5% fall into the 45 to 64 bracket. Finally, around 20.3% are 65 or older.

Median age
43.7
Age breakdown
Under 15
15.4%
15 to 24
10.3%
25 to 44
25.5%
45 to 64
28.5%
Over 65
20.3%
Value Percent YoY change
Under 15 3,494 15.4% 5.4%
15 to 24 2,343 10.3% 3.2%
25 to 44 5,795 25.5% 3.2%
45 to 64 6,458 28.5% -2.8%
Over 65 4,599 20.3% -3.1%
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 Millbrae, 57.4% of the population are US-born citizens, while 29.5% have gained naturalized citizenship. At the same time, 13.1% of residents are non-citizens. As for race, 30.7% of locals are Caucasian, 0.9% are African American and 48.2% have Asian roots. Another 0.3% are Indigenous American, 1.9% are Pacific Islanders, while 6.8% identify as another race. There’s also a share of 11.2% that includes residents with two or more races.

Citizenship
U.S.-born citizens
57.4%
Non-U.S.-born citizens
29.5%
Non-citizens
13.1%
Value Percent YoY change
U.S.-born citizens 13,029 57.4% -0.7%
Non-U.S.-born citizens 6,695 29.5% -0.5%
Non-citizens 2,965 13.1% 7.9%
Racial breakdown
White
30.7%
Black or African American
0.9%
American Indian and Alaska Native
0.3%
Asian
48.2%
Native Hawaiian and other Pacific Islander
1.9%
Two or more races
11.2%
Other
6.8%
Value Percent
White 6,963 30.7%
Black or African American 201 0.9%
American Indian and Alaska Native 72 0.3%
Asian 10,926 48.2%
Native Hawaiian and other Pacific Islander 428 1.9%
Two or more races 2,552 11.2%
Other 1,547 6.8%

Households in Millbrae

A peek inside Millbrae households

Millbrae has 8,121 households, with an average of 3 members in each. Of these, 68.3% are families, while the remaining 31.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
8,121
1.5% year-over-year change
Average people per household
3
Non-family households
2,577
Family households
5,544
Value Percent YoY change
Non-family households 2,577 31.7% 3.5%
Family households 5,544 68.3% 0.6%
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 Millbrae

The housing landscape of Millbrae

Millbrae's housing consists of 8,705 units, with 61.1% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.8% and offer a more compact, shared living style.

Housing units
8,705
1.6% year-over-year change
Housing types
Value Percent
1 unit, detached 5,320 61.1%
1 unit, attached 241 2.8%
2 units 125 1.4%
3 or 4 units 318 3.6%
5 to 9 units 486 5.6%
10 to 19 units 615 7.1%
20 to 49 units 522 6%
50 or more units 1,051 12.1%
Boat, RV, van, etc. 27 0.3%
Homes built since 2020
91
89.6% year-over-year change

The age of buildings in Millbrae

In Millbrae, the median construction year is 1962. About 6.4% of homes were built before the 1940s, with another 16.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 5% of homes were added from 2000 to 2009, 4.8% between 2010 and 2019, and 1% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 558 6.4% -2.5%
Built between 1940 and 1949 1,473 16.9% -5.0%
Built between 1950 and 1959 2,003 23% -4.3%
Built between 1960 and 1969 1,470 16.9% 2.1%
Built between 1970 and 1979 1,171 13.4% 6.5%
Built between 1980 and 1989 751 8.6% 17.5%
Built between 1990 and 1999 329 3.8% 13.8%
Built between 2000 and 2009 439 5% 21.3%
Built between 2010 and 2019 420 4.8% -11.4%
Built in 2020 or later 91 1% 89.6%
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.

Millbrae occupancy rates

Out of the 8,121 occupied housing units in Millbrae, 60.8% are owner-occupied, while 39.2% are lived in by tenants. Meanwhile, 6.7% of all homes on the local market sit vacant.

Occupied housing units
8,121
1.5% year-over-year change
Occupancy breakdown
Renter occupied
3,184
Owner occupied
4,937
Value Percent YoY
change
Renter occupied 3,184 39.2% 8.2%
Owner occupied 4,937 60.8% -2.3%
Unoccupied housing units
6.7%
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.

Millbrae housing costs

Housing costs in Millbrae come to a median of $3,260 per month, while tenants specifically pay a median gross rent of $3,272.

Median housing costs per month
$3,260/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 Millbrae
$3,272/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 Millbrae

Millbrae education at a glance

About 20.1% of the population in Millbrae went to high school, while 17.6% pursued college studies. Another 8.1% earned an associate degree and 30.4% hold a bachelor’s. Meanwhile, 20% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 711 3.9% 3.5%
High school diploma 3,686 20.1% -6.6%
College diploma 3,225 17.6% -4.7%
Associate degree 1,484 8.1% 1.6%
Bachelor's degree 5,592 30.4% 4.8%
Graduate degree 3,669 20% 1.9%
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 Millbrae

How much people earn in Millbrae

The average annual household income in Millbrae was $215,347 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.5% change from the previous year. At the same time, the median income stood at $163,476, reflecting a +3.8% shift over the same period.

Average household income in Millbrae
$215,347/year
2.5% year-over-year change
Median household income in Millbrae
$163,476/year
3.8% year-over-year change

Millbrae income by age

In Millbrae, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $206,316. Those with someone between 45 and 64 in charge, often well established professionally, earn $185,600 overall. Overall, 94.2% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $206,316 2.7%
45 - 64 $185,600 2.2%
Over 65 $100,014 12.6%
Above poverty level
20,910
Below poverty level
1,293
Value Percent YoY
change
Above poverty level 20,910 94.2% 0.5%
Below poverty level 1,293 5.8% -5.3%

Average renter income in Millbrae

To get a better sense of what renters earn on average in Millbrae, their median household income was $111,738 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 35.1%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$111,738
Rent-to-income ratio
35.1%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Millbrae

Workforce and job types in Millbrae

The job market in Millbrae is powered by 11,657 working residents, spread across a range of industries and roles. 86.8% of the working population are employed in professional or administrative positions, while 13.2% are in hands-on or service-based jobs. Also, 13.6% run their own businesses, 63% are employed by private companies, and 14.7% work in the public sector.

Workforce demographics

Working population
11,657
-0.5% year-over-year change
White collar
10,124
Blue collar
1,533
Value Percent YoY change
White collar 10,124 86.8% -0.2%
Blue collar 1,533 13.2% -2.4%
Employer type
Self employees
13.6%
Private companies
63%
Governmental workers
14.7%
Not for profit companies
8.7%
Value Percent YoY change
Self employees 1,585 13.6% -7.7%
Private companies 7,344 63% -1.9%
Governmental workers 1,715 14.7% 9.7%
Not for profit companies 1,013 8.7% 7.0%
Unemployment rate
5.7%
-9.9% year-over-year change

Available workforce

The unemployment rate in Millbrae stands at 5.7%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Millbrae

How people get around in Millbrae

In Millbrae, the average commute time is 29 minutes. Commuting methods vary: 67.1% of residents travel by personal vehicle and 1.4% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
29 min
-0.7% year-over-year change
Means of transportation
Value Percent YoY change
Car 7,523 67.1% -0.2%
Taxicab 44 0.4% 100.0%
Bus or trolleybus 205 1.8% 45.4%
Subway or elevated 457 4.1% N/A
Railroad 168 1.5% -26.6%
Motorcycle 20 0.2% -33.3%
Bicycle 43 0.4% -34.9%
Walk 152 1.4% -13.1%
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 Millbrae by zipcode?

Zipcode Population Number of households Median income Average income
94030 22,689 8,121 $163,476 $215,347

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FAQs about Millbrae demographics 

What is the total population of Millbrae?

Millbrae has a total population of 22,689 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 +0.4% compared to a year ago.

What is the gender ratio in Millbrae?

The gender ratio in Millbrae is as follows:
  • 48.4% males (10,989 residents)
  • 51.6% females (11,700 residents)

What is the median age in Millbrae?

The median age in Millbrae is 43.7.

What is the age distribution of the population in Millbrae?

The age distribution in Millbrae is as follows:
  • Under 15: 15.4% (3,494 residents)
  • Ages 15-24: 10.3% (2,343 residents)
  • Ages 25-44: 25.5% (5,795 residents)
  • Ages 45-64: 28.5% (6,458 residents)
  • Over 65: 20.3% (4,599 residents)

What is the racial and ethnic makeup of Millbrae?

The racial and ethnic makeup of Millbrae is as follows:
  • White: 30.7% (6,963 residents)
  • Black or African American: 0.9% (201 residents)
  • American Indian and Alaska Native: 0.3% (72 residents)
  • Asian: 48.2% (10,926 residents)
  • Native Hawaiian and Other Pacific Islander: 1.9% (428 residents)
  • Two or More Races: 11.2% (2,552 residents)
  • Other: 6.8% (1,547 residents)

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

U.S.-born citizens represent 57.4% of the population in Millbrae.

How many housing units are there in Millbrae?

There are 8,705 housing units in Millbrae, reflecting a +1.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Millbrae has a total of 8,121 households, with an average of 3 people in each.

What is the median household income in Millbrae?

Millbrae has a median household income of $163,476, representing a +3.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Millbrae?

The employment rate is 94.3% in Millbrae, with a workforce of 11,657 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 86.8% (10,124 residents)
  • Blue-collar workers: 13.2% (1,533 residents)

Places of employment:
  • Self-employed: 13.6% (1,585 residents)
  • Private companies: 63% (7,344 residents)
  • Governmental workers: 14.7% (1,715 residents)
  • Not-for-profit companies: 8.7% (1,013 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