Millbrae, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Millbrae, California is 22,589 as of the 2023 American Community Survey, making it the 324th-largest city in California. The median household income is $157,567, the median home value is $1,929,700, and the median age is 45.3.
The population has grown 8.1% since 2010 (21,572 → 23,321).
22,589
Population
6910
People / sq mi
$157,567
Median Income
$1,929,700
Median Home Value
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Millbrae covers 3.3 sq mi of land at 6910 people per square mile.
About Millbrae, CA
Housing cost is the defining feature of Millbrae: the median home is valued at $1,929,700. Millbrae is a city in California with a population of 22,589.
Income is a real outlier — the median household pulls in $157,567, putting Millbrae near the top of US cities. Only 3.4% of residents live in poverty, below the national 12.4%. Housing is expensive: the median home is worth $1,929,700, with typical rent around $3,401.
Educational attainment is on the higher side for US cities — 50.5% of adults hold a four-year degree, above the national 35.0%. A solid 19.9% of workers are based at home, above the national 14.0%, and the average commute runs about 29 minutes each way.
High housing values reframe the income picture in Millbrae — even solid earnings stretch less against home prices and rents at this level.
Millbrae city Population History (2010-2024)
The city of Millbrae city had a population of 21,572 in 2010 and 23,321 in 2024, a 8.1% growth over 14 years. The peak was 23,321 in 2024. Average annual growth rate: 0.57%.
23,321
Population (2024)
21,572
Population (2010)
23,321
Peak (2024)
0.57%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 21,572 |
| 2011 | 21,847 |
| 2012 | 22,123 |
| 2013 | 22,480 |
| 2014 | 22,669 |
| 2015 | 22,803 |
| 2016 | 22,764 |
| 2017 | 22,649 |
| 2018 | 22,530 |
| 2019 | 22,394 |
| 2020 | 23,138 |
| 2021 | 22,315 |
| 2022 | 22,151 |
| 2023 | 22,522 |
| 2024 | 23,321 |
Race & Ethnicity
| White | 34.0% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.0% |
| Two or More Races | 0.0% |
Economy & Income
$157,567
Median Household Income
$76,277
Per Capita Income
3.4%
Poverty Rate
4.1%
Unemployment Rate
Housing
$1,929,700
Median Home Value
$3,401
Median Rent
63.2%
Owner-Occupied
Education
93.2%
High School+
50.5%
Bachelor's+
Commute
9.1%
Drive Alone
57.9%
Public Transit
19.9%
Work From Home
28.8 min
Avg Commute
Community Profile
9.7%
Foreign Born
51.2%
Non-English at Home
3.0%
Veterans
9.7%
With Disability
96.9%
Health Insurance
96.7%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 19.9% |
| Finance, Insurance & Real Estate | 18.3% |
| Education, Health Care & Social Services | 9.3% |
| Information | 8.7% |
| Retail Trade | 8.2% |
| Manufacturing | 6.7% |
| Construction | 5.8% |
| Arts, Entertainment & Food Services | 5.4% |
| Public Administration | 4.5% |
| Transportation & Warehousing | 3.9% |
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Frequently Asked Questions
Millbrae, California has a population of 22,589 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 324th-largest city in California.
The median household income in Millbrae, California is $157,567, with 3.4% of residents living below the federal poverty level.
The median home value in Millbrae, California is $1,929,700, with median monthly rent at $3,401 and a homeownership rate of 63.2%.
The median age in Millbrae, California is 45.3 years. The population is 48.8% male and 51.2% female.
The population has grown 8.1% since 2010 (21,572 → 23,321).
Where to stay in Millbrae
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.