Population 23,583 · Census ACS 2020–24
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Population and households in Millbrae
Household size in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.60 | 2.74 | 3.04 | 2.68 |
| 2010–14 | 2.74 | 2.79 | 3.10 | 2.73 |
| 2015–19 | 2.82 | 2.83 | 3.09 | 2.71 |
| 2020–24 | 2.82 | 2.75 | 3.01 | 2.65 |
| Change | +0.22 | +0.01 | −0.03 | −0.03 |
The typical household in Millbrae holds 2.82 people, more than the U.S. average of 2.65. Household size has climbed from 2.60 in 2006–10, even as the national average fell. Households are largest in the center and smallest in the east.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 44.8 | 38.6 | 35.8 | 37.7 |
| 2010–14 | 45.4 | 39.4 | 36.8 | 38.6 |
| 2015–19 | 44.4 | 40.1 | 37.9 | 39.6 |
| 2020–24 | 44.1 | 41.3 | 39.0 | 40.1 |
| Change | −0.7 | +2.7 | +3.1 | +2.3 |
Millbrae skews older: half of its residents are older than 44.1, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has edged down from 44.8, even as the national median rose.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.9% | 10.3% | 13.5% | 12.3% |
| 2010–14 | 6.2% | 9.9% | 13.5% | 12.3% |
| 2015–19 | 5.8% | 9.1% | 12.3% | 11.6% |
| 2020–24 | 7.0% | 8.8% | 12.3% | 11.6% |
| Change | +1.0 pts | −1.5 pts | −1.2 pts | −0.6 pts |
Single parents head only 7.0% of households in Millbrae, well below the national share of 11.6%. The single-parent share is up 1.0 points from 2006–10, even as the national share fell. Millbrae has a lower share of single-parent households than at least four in five California cities.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Millbrae
Renters in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 36.2% | 43.7% | 42.6% | 33.3% |
| 2010–14 | 35.6% | 46.2% | 45.2% | 35.6% |
| 2015–19 | 35.6% | 45.3% | 45.2% | 36.0% |
| 2020–24 | 38.8% | 44.5% | 44.1% | 34.8% |
| Change | +2.7 pts | +0.8 pts | +1.5 pts | +1.5 pts |
About four in ten households in Millbrae rent their homes (38.8%), a bit above the national share of 34.8%. Even so, renters make up a smaller share here than in the San Francisco area as a whole (44.5%). Among homeowners, 38.3% have no mortgage at all, about the same as nationally. Since 2006–10, the renter share has risen 2.7 points, mirroring the country.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.4% | 8.6% | 8.7% | 11.4% |
| 2010–14 | 5.5% | 7.1% | 8.1% | 11.4% |
| 2015–19 | 5.3% | 6.5% | 7.5% | 11.1% |
| 2020–24 | 7.2% | 7.5% | 7.3% | 9.6% |
| Change | +1.7 pts | −1.1 pts | −1.4 pts | −1.8 pts |
Fewer homes sit empty in Millbrae than nationally: 7.2%, against 9.6% for the U.S. That is in line with the rest of the San Francisco area. Vacancy is up 1.7 points from 2006–10, even as the national rate fell.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 1960 | 1964 | 1972 | 1974 |
| 2010–14 | 1961 | 1965 | 1973 | 1975 |
| 2015–19 | 1962 | 1966 | 1974 | 1977 |
| 2020–24 | 1964 | 1968 | 1976 | 1980 |
| Change | +4 | +4 | +4 | +6 |
Millbrae is a place of older homes: half were built before 1964, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1960 in 2006–10, a sign of steady new building. The newest homes are mostly in the east, the oldest in the northwest.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,579 | $1,452 | $1,298 | $965 |
| 2010–14 | $1,746 | $1,551 | $1,379 | $1,040 |
| 2015–19 | $2,650 | $2,139 | $1,721 | $1,213 |
| 2020–24 | $3,142 | $2,666 | $2,229 | $1,571 |
| Change | +$1,563 | +$1,214 | +$931 | +$606 |
Rent in Millbrae runs $3,142 a month at the median, utilities included, well above the U.S. median of $1,571. Rents are up $1,563 a month from 2006–10, a 99% jump, faster than rents rose nationally. The typical renter here spends 32.9% of household income on rent, just over the 30% mark often used to define affordable rent. Rents run highest in the southeast and lowest in the north.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Millbrae
Bachelor's degrees in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.1% | 42.5% | 29.1% | 28.4% |
| 2010–14 | 42.1% | 44.1% | 30.1% | 29.6% |
| 2015–19 | 52.1% | 48.9% | 32.9% | 32.1% |
| 2020–24 | 51.9% | 52.2% | 36.3% | 35.6% |
| Change | +11.8 pts | +9.7 pts | +7.1 pts | +7.2 pts |
Millbrae is highly educated: just over half of adults 25 and older (51.9%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree has risen 11.8 points since 2006–10, in line with the national trend. College graduates are most concentrated in the southeast and least in the northeast.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.7% | 86.8% | 79.9% | 84.9% |
| 2010–14 | 92.0% | 87.5% | 80.7% | 86.1% |
| 2015–19 | 92.9% | 88.8% | 82.6% | 87.7% |
| 2020–24 | 93.2% | 89.1% | 84.2% | 89.3% |
| Change | +3.5 pts | +2.3 pts | +4.3 pts | +4.3 pts |
High school completion in Millbrae is above the national rate: 93.2% of adults have a diploma, against 89.3%. Since 2006–10, the share with a diploma has risen 3.5 points, in line with the national trend.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Millbrae
| Period | Millbrae | San Francisco area | California | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.6% | 7.8% | 9.2% | 8.1% |
| 2010–14 | 6.4% | 8.9% | 11.3% | 9.4% |
| 2015–19 | 3.1% | 4.6% | 6.3% | 5.6% |
| 2020–24 | 5.2% | 5.8% | 6.6% | 5.4% |
| Change | −0.4 pts | −2.0 pts | −2.6 pts | −2.7 pts |
Unemployment in Millbrae is close to the national rate: 5.2% of the labor force, against 5.4%. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Millbrae compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Millbrae | 2.82 | 44.1 | 7.0% | 38.8% | 7.2% | 1964 | $3,142 | 51.9% | 93.2% | 5.2% |
| San Bruno | 2.91 | 40.7 | 7.2% | 38.2% | 8.6% | 1963 | $2,856 | 44.4% | 90.7% | 5.2% |
| Burlingame | 2.51 | 41.7 | 6.9% | 50.9% | 11.0% | 1956 | $2,806 | 65.1% | 94.7% | 5.6% |
| Millbrae Meadows | 2.54 | 55.7 | 2.4% | 4.4% | 8.5% | 1972 | $3,501 | 56.9% | 96.3% | 2.9% |
| Hillsborough | 3.05 | 47.0 | 6.9% | 9.6% | 6.4% | 1965 | $3,419 | 82.0% | 98.7% | 6.3% |
| South San Francisco | 2.98 | 43.4 | 8.6% | 41.2% | 8.5% | 1969 | $2,905 | 40.4% | 85.6% | 2.8% |
| Pedro Valley | 2.82 | 46.0 | 5.0% | 24.5% | 17.2% | 1970 | $3,453 | 43.1% | 93.0% | 0.0% |
| Pacifica | 2.74 | 45.2 | 8.1% | 32.9% | 5.8% | 1965 | $3,089 | 48.6% | 95.2% | 3.9% |
| Highlands-Baywood Park | 3.19 | 43.8 | 0.8% | 9.9% | 3.5% | 1963 | $3,501 | 84.3% | 98.7% | 2.3% |
| San Mateo | 2.69 | 39.2 | 8.9% | 49.4% | 7.4% | 1966 | $3,100 | 56.6% | 90.0% | 4.6% |
| Brisbane | 2.61 | 44.2 | 7.9% | 44.2% | 12.3% | 1979 | $2,750 | 48.1% | 86.7% | 8.3% |
All figures 2020–24.
Cities with similar populations: Alexandria, MN · Washington, MI · Allston, MA · Alvarado, TX · American Canyon, CA · Amsterdam, NY · Antioch, IL · Waverly, MI · Augusta, ME · Athens, TN
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Millbrae. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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