PlainCities

Census tract · San Mateo County

Census Tract 6127, San Mateo County, California

Census Tract 6127, GEOID 06081612700, in San Mateo County, California, entirely within Menlo Park. 2,078 residents in the ACS 2020-2024 5-year estimates (±243); the 2020 Census counted 2,291.

Residents, 2020-2024

2,078

±243 (90% margin)
2020 Census count: 2,291

Median household income

$250,000 or more

The survey's top or bottom value; no margin is published
San Mateo County: $158,855

Median home value

$2,000,000 or more

The survey's top or bottom value; no margin is published
San Mateo County: $1,559,600

Median gross rent

$3,500 or more

The survey's top or bottom value; no margin is published
San Mateo County: $2,922

Where is Census Tract 6127?

Census Tract 6127 is one of 174 census tracts in San Mateo County, California. It covers 0.49 square miles of land, 4,657 residents per square mile in 2020. Its GEOID, 06081612700, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 6127 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Menlo Park100%
Census Tract 6127 (marked with a dot) in San Mateo County, California. Boundaries: Census Bureau 2024.
6114612661285116.09 6127 1 mi
Census Tract 6127 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000. Dashed: tracts outside San Mateo County.

4 census tracts border Census Tract 6127: Tract 6114 ($250,000 or more), Tract 6126 ($166,685), Tract 6128 ($250,000 or more) and Tract 5116.09 in Santa Clara County ($148,365). 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 6127?

The 2020-2024 American Community Survey puts Census Tract 6127's population at 2,078 (±243) in 729 households; the 2020 Census counted 2,291 residents and 815 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 6127Menlo ParkSan Mateo CountyCalifornia
Total population2,078±24332,727742,34039,287,377
Households729±8611,837264,41913,548,091
Average household size2.83±0.242.682.762.84
Housing units782±8013,388287,18414,644,735

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 6127?

The median resident of Census Tract 6127 is 50.1 years old; 23.5% are under 18 and 23.2% are 65 or older. The largest group is non-Hispanic white residents at 73.3%, then non-Hispanic Asian residents at 17.5%. 21.3% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureTract 6127Menlo ParkSan Mateo CountyCalifornia
Median age50.1±3.539.540.937.9
Under 18 years23.5%±3.0 pts21.0%19.5%22.0%
65 years and over23.2%±4.6 pts16.6%17.8%15.7%
Hispanic or Latino (any race)6.8%±3.7 pts20.9%24.9%40.2%
White alone, not Hispanic73.3%±6.6 pts51.6%34.7%33.8%
Black or African American alone, not Hispanic0.0%±2.0 pts2.1%2.0%5.2%
Asian alone, not Hispanic17.5%±5.1 pts18.7%31.0%15.3%
American Indian and Alaska Native alone, not Hispanic0.0%±2.0 pts0.1%0.1%0.3%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±2.0 pts0.2%1.1%0.3%
Two or more races, not Hispanic2.5%±1.8 pts5.7%5.2%4.4%
Some other race alone, not Hispanic0.0%±2.0 pts0.7%0.9%0.6%
Born outside the United States21.3%±4.9 pts30.0%35.7%27.0%
Speak a language other than English at home (age 5+)18.2%±5.6 pts39.7%45.8%44.4%
Civilian veterans (age 18+)3.3%±1.6 pts3.4%2.9%4.3%
With a disability5.4%±2.0 pts8.7%9.4%11.6%
No health insurance coverage3.4%±2.9 pts3.4%3.8%6.6%
High school graduate or higher (age 25+)99.7%±0.8 pts92.5%90.2%84.7%
Bachelor's degree or higher (age 25+)88.2%±4.5 pts72.5%53.7%37.1%
Graduate or professional degree (age 25+)56.1%±6.3 pts45.0%24.1%14.4%
Lived in the same house a year earlier83.2%±6.5 pts83.1%88.4%89.2%

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 6127 earn?

Half of the 729 households in Census Tract 6127 earn less than $250,000 or more a year (), against $158,855 across San Mateo County: 1st highest of the county's 172 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 6127Menlo ParkSan Mateo CountyCalifornia
Median household income$250,000 or more$210,025$158,855$99,122
Mean household income$379,898±$44,409$347,039$231,822$140,436
Per capita income$139,713±$15,696$128,814$84,288$49,513
People below the poverty line4.4%±2.9 pts5.8%6.7%12.0%
Children under 18 below the poverty line0.0%±8.4 pts2.4%6.2%15.0%
Households receiving SNAP2.1%±3.2 pts4.7%5.1%12.4%
Households with a computer98.8%±1.5 pts97.9%97.7%96.9%
Households with a broadband subscription97.9%±1.8 pts96.7%95.7%93.5%

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 6127?

Owners occupy 81.8% of Census Tract 6127's occupied homes and renters 18.2%. The median owner-occupied home is valued at $2,000,000 or more by its owner (). The median renter pays $3,500 or more a month including utilities.

Housing, ACS 2020-2024 5-year estimates
MeasureTract 6127Menlo ParkSan Mateo CountyCalifornia
Median home value (owner-occupied)$2,000,000 or more$2,000,000 or more$1,559,600$734,700
Median gross rent$3,500 or more$3,239$2,922$2,036
Renters paying 35% or more of income on rent41.9%±28.6 pts36.5%40.3%46.0%
Median monthly owner costs, with a mortgage$4,000 or more$4,000 or more$4,000 or more$2,946
Owner-occupied homes81.8%±7.6 pts54.2%58.5%55.9%
Renter-occupied homes18.2%±7.6 pts45.8%41.5%44.1%
Housing units782±8013,388287,18414,644,735
Single-family detached homes98.7%±1.3 pts53.6%55.3%57.0%
Mobile homes0.6%±0.9 pts0.3%1.1%3.5%
Built 2020 or later2.0%±1.9 pts1.1%1.0%1.3%
Built 2010 to 20196.5%±2.9 pts11.7%5.4%6.5%
Built 1939 or earlier10.0%±5.7 pts7.1%8.6%8.9%
Households with no vehicle0.7%±0.9 pts7.9%5.8%7.1%

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 6127 get to work?

41.6% of Census Tract 6127's workers drive alone and 42.3% work from home. The average trip to work takes 19.2 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 6127Menlo ParkSan Mateo CountyCalifornia
In the labor force (age 16+)60.5%±6.0 pts65.9%67.3%63.8%
Unemployment rate3.4%±2.4 pts4.8%4.8%6.6%
Drove alone to work41.6%±10.1 pts48.4%56.7%65.7%
Carpooled1.7%±1.6 pts6.0%8.7%9.5%
Public transportation0.4%±0.7 pts2.0%5.1%2.9%
Walked4.0%±3.9 pts1.7%2.3%2.4%
Worked from home42.3%±9.0 pts32.4%24.3%17.2%
Mean travel time to work19.2 min±2.923.9 min26.4 min28.7 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 6127 compare with the other tracts in San Mateo County?

Among San Mateo County's tracts with a reliable estimate, Census Tract 6127 ranks as shown below (1 = highest).

Census Tract 6127's rank among the tracts of San Mateo County and of Menlo Park
MeasureIn San Mateo CountyIn Menlo Park
Population169th of 1728th of 8
Residents per square mile132nd of 1736th of 8
Median household income1st of 1721st of 8
Per capita income13th of 1724th of 8
Median home value1st of 1711st of 8
Median gross rent1st of 1691st of 8
Bachelor's degree or higher2nd of 1722nd of 8
Median age7th of 1721st of 8
Owner-occupied share36th of 1712nd of 8

The tracts next to it on San Mateo County's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 60561st$250,000 or more6,204
Tract 60571st$250,000 or more4,929
Tract 60691st$250,000 or more2,496
Tract 60711st$250,000 or more2,726
Tract 6080.231st$250,000 or more2,348
Tract 60881st$250,000 or more6,046
Tract 60931st$250,000 or more3,428
Tract 60941st$250,000 or more3,251
Tract 60951st$250,000 or more4,686
Tract 6096.011st$250,000 or more3,460
Tract 6096.021st$250,000 or more1,719
Tract 60971st$250,000 or more4,608
Tract 60981st$250,000 or more4,491
Tract 60991st$250,000 or more2,955
Tract 61141st$250,000 or more4,215
Tract 61151st$250,000 or more2,778
Tract 61161st$250,000 or more2,431
Tract 61271st$250,000 or more2,078
Tract 61281st$250,000 or more3,126
Tract 61291st$250,000 or more4,517
Tract 61301st$250,000 or more3,245
Tract 61321st$250,000 or more6,481
Tract 61331st$250,000 or more2,801
Tract 61341st$250,000 or more3,077

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 6127?

2 of the 18 figures for Census Tract 6127 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