Census tract · San Mateo County
Census Tract 6045, San Mateo County, California
Census Tract 6045, GEOID 06081604500, in San Mateo County, California, entirely within Millbrae. 3,574 residents in the ACS 2020-2024 5-year estimates (±396); the 2020 Census counted 3,648.
Residents, 2020-2024
3,574
±396 (90% margin)
2020 Census count: 3,648
Median household income
$188,750
±$48,639 (90% margin)
San Mateo County: $158,855
Median home value
$1,989,200
±$196,842 (90% margin)
San Mateo County: $1,559,600
Median gross rent
$2,781
±$611 (90% margin)
San Mateo County: $2,922
Where is Census Tract 6045?
Census Tract 6045 is one of 174 census tracts in San Mateo County, California. It covers 0.63 square miles of land, 5,809 residents per square mile in 2020. Its GEOID, 06081604500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Millbrae | 100% |
5 census tracts border Census Tract 6045: Tract 6039 ($127,155), Tract 6044 ($133,654), Tract 6046 ($192,054), Tract 6047 ($226,667) and Tract 6048 ($158,235). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 6045?
The 2020-2024 American Community Survey puts Census Tract 6045's population at 3,574 (±396) in 1,346 households; the 2020 Census counted 3,648 residents and 1,386 housing units.
| Measure | Tract 6045 | Millbrae |
|---|---|---|
| Total population | 3,574±396 | 22,689 |
| Households | 1,346±145 | 8,121 |
| Average household size | 2.63±0.25 | 2.76 |
| Housing units | 1,410±149 | 8,705 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 6045?
The median resident of Census Tract 6045 is 47.4 years old; 18.4% are under 18 and 26.6% are 65 or older. The largest group is non-Hispanic Asian residents at 43.3%, then non-Hispanic white residents at 37.4%. 26.7% of residents were born outside the United States.
| Measure | Tract 6045 | Millbrae |
|---|---|---|
| Median age | 47.4±6.4 | 43.7 |
| Under 18 years | 18.4%±3.9 pts | 19.0% |
| 65 years and over | 26.6%±6.3 pts | 20.3% |
| Hispanic or Latino (any race) | 15.0%±6.3 pts | 13.9% |
| White alone, not Hispanic | 37.4%±6.8 pts | 29.4% |
| Black or African American alone, not Hispanic | 0.1%±0.3 pts | 0.8% |
| Asian alone, not Hispanic | 43.3%±6.4 pts | 48.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.2 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.2 pts | 1.9% |
| Two or more races, not Hispanic | 4.2%±3.9 pts | 4.6% |
| Some other race alone, not Hispanic | 0.0%±1.2 pts | 1.1% |
| Born outside the United States | 26.7%±5.8 pts | 40.8% |
| Speak a language other than English at home (age 5+) | 37.0%±6.5 pts | 48.7% |
| Civilian veterans (age 18+) | 4.2%±2.6 pts | 2.6% |
| With a disability | 8.9%±3.4 pts | 9.3% |
| No health insurance coverage | 1.5%±1.3 pts | 3.6% |
| High school graduate or higher (age 25+) | 93.1%±4.6 pts | 93.6% |
| Bachelor's degree or higher (age 25+) | 56.8%±7.1 pts | 52.7% |
| Graduate or professional degree (age 25+) | 25.7%±5.2 pts | 21.6% |
| Lived in the same house a year earlier | 92.4%±3.6 pts | 88.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 6045 earn?
Half of the 1,346 households in Census Tract 6045 earn less than $188,750 a year (±$48,639), against $158,855 across San Mateo County: 56th highest of the county's 172 tracts with a reliable estimate.
| Measure | Tract 6045 | Millbrae |
|---|---|---|
| Median household income | $188,750±$48,639 | $163,476 |
| Mean household income | $235,302±$32,305 | $215,347 |
| Per capita income | $89,574±$12,197 | $78,551 |
| People below the poverty line | 3.3%±2.6 pts | 6.0% |
| Children under 18 below the poverty line | 2.5%±4.1 pts | 7.2% |
| Households receiving SNAP | 2.6%±3.3 pts | 2.8% |
| Households with a computer | 97.0%±3.7 pts | 97.0% |
| Households with a broadband subscription | 92.3%±5.4 pts | 93.6% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 6045?
Owners occupy 81.1% of Census Tract 6045's occupied homes and renters 18.9%. The median owner-occupied home is valued at $1,989,200 by its owner (±$196,842). The median renter pays $2,781 a month including utilities, and 64.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 6045 | Millbrae |
|---|---|---|
| Median home value (owner-occupied) | $1,989,200±$196,842 | $1,934,900 |
| Median gross rent | $2,781±$611 | $3,272 |
| Renters paying 35% or more of income on rent | 64.1%±17.5 pts | 44.0% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 81.1%±5.7 pts | 60.8% |
| Renter-occupied homes | 18.9%±5.7 pts | 39.2% |
| Housing units | 1,410±149 | 8,705 |
| Single-family detached homes | 82.7%±5.8 pts | 61.1% |
| Mobile homes | 0.0%±3.0 pts | 0.0% |
| Built 2020 or later | 0.0%±3.0 pts | 1.0% |
| Built 2010 to 2019 | 4.3%±4.6 pts | 4.8% |
| Built 1939 or earlier | 2.8%±2.4 pts | 6.4% |
| Households with no vehicle | 11.4%±5.6 pts | 7.8% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 6045 get to work?
60.5% of Census Tract 6045's workers drive alone and 20.2% work from home. The average trip to work takes 27.3 minutes. The unemployment rate in 2020-2024 averaged 4.1%.
| Measure | Tract 6045 | Millbrae |
|---|---|---|
| In the labor force (age 16+) | 62.1%±6.2 pts | 65.8% |
| Unemployment rate | 4.1%±2.4 pts | 5.7% |
| Drove alone to work | 60.5%±6.7 pts | 59.0% |
| Carpooled | 10.0%±5.2 pts | 8.1% |
| Public transportation | 2.6%±1.9 pts | 7.5% |
| Walked | 2.7%±2.4 pts | 1.4% |
| Worked from home | 20.2%±6.0 pts | 22.2% |
| Mean travel time to work | 27.3 min±3.0 | 28.6 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 6045 compare with the other tracts in San Mateo County?
Among San Mateo County's tracts with a reliable estimate, Census Tract 6045 ranks as shown below (1 = highest).
| Measure | In San Mateo County | In Millbrae |
|---|---|---|
| Population | 108th of 172 | 3rd of 6 |
| Residents per square mile | 116th of 173 | 4th of 6 |
| Median household income | 56th of 172 | 3rd of 6 |
| Per capita income | 73rd of 172 | 2nd of 6 |
| Median home value | 56th of 171 | 5th of 6 |
| Median gross rent | 114th of 169 | 6th of 6 |
| Bachelor's degree or higher | 81st of 172 | 4th of 6 |
| Median age | 17th of 172 | 1st of 6 |
| Owner-occupied share | 41st of 171 | 2nd of 6 |
The tracts next to it on San Mateo County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 6046 | 53rd | $192,054±$51,160 · within the margin of this tract |
| Tract 6015.01 | 54th | $190,081±$33,978 · within the margin of this tract |
| Tract 6028 | 55th | $189,263±$23,654 · within the margin of this tract |
| Tract 6045 | 56th | $188,750±$48,639 |
| Tract 6017 | 57th | $186,974±$27,188 · within the margin of this tract |
| Tract 6092.02 | 58th | $186,333±$49,497 · within the margin of this tract |
| Tract 6078 | 59th | $186,106±$27,017 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 6045?
2 of the 18 figures for Census Tract 6045 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections