PlainCities

Census tract · San Mateo County

Census Tract 6114, San Mateo County, California

Census Tract 6114, GEOID 06081611400, in San Mateo County, California, entirely within Atherton. 4,215 residents in the ACS 2020-2024 5-year estimates (±297); the 2020 Census counted 4,453.

Residents, 2020-2024

4,215

±297 (90% margin)
2020 Census count: 4,453

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 6114?

Census Tract 6114 is one of 174 census tracts in San Mateo County, California. It covers 3.40 square miles of land, 1,310 residents per square mile in 2020. Its GEOID, 06081611400, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 6114 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Atherton100%
Census Tract 6114 (marked with a dot) in San Mateo County, California. Boundaries: Census Bureau 2024.
6106.01611361156125612661276128612961306133 6114 1 mi
Census Tract 6114 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

11 census tracts border Census Tract 6114: Tract 6106.01 ($98,167), Tract 6107 ($146,476), Tract 6113 ($229,612), Tract 6115 ($250,000 or more), Tract 6125 ($165,521), Tract 6126 ($166,685), Tract 6127 ($250,000 or more), Tract 6128 ($250,000 or more), Tract 6129 ($250,000 or more), Tract 6130 ($250,000 or more) and Tract 6133 ($250,000 or more). 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 6114?

The 2020-2024 American Community Survey puts Census Tract 6114's population at 4,215 (±297) in 1,277 households; the 2020 Census counted 4,453 residents and 1,520 housing units.

Counts, ACS 2020-2024 5-year estimates
Measure Tract 6114AthertonSan Mateo CountyCalifornia
Total population 4,215 ±297 6,993 742,340 39,287,377
Households 1,277 ±137 2,227 264,419 13,548,091
Average household size 2.79 ±0.23 2.85 2.76 2.84
Housing units 1,575 ±149 2,667 287,184 14,644,735

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 6114?

The median resident of Census Tract 6114 is 48.5 years old; 17.3% are under 18 and 28.5% are 65 or older. The largest group is non-Hispanic white residents at 60.9%, then non-Hispanic Asian residents at 16.9%. 17.7% 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.
Measure Tract 6114AthertonSan Mateo CountyCalifornia
Median age 48.5 ±5.8 49.1 40.9 37.9
Under 18 years 17.3% ±3.6 pts 18.4% 19.5% 22.0%
65 years and over 28.5% ±5.5 pts 25.6% 17.8% 15.7%
Hispanic or Latino (any race) 13.5% ±5.4 pts 14.2% 24.9% 40.2%
White alone, not Hispanic 60.9% ±6.3 pts 62.0% 34.7% 33.8%
Black or African American alone, not Hispanic 1.5% ±1.4 pts 0.9% 2.0% 5.2%
Asian alone, not Hispanic 16.9% ±6.4 pts 18.0% 31.0% 15.3%
American Indian and Alaska Native alone, not Hispanic 0.1% ±0.1 pts 0.0% 0.1% 0.3%
Native Hawaiian and Other Pacific Islander alone, not Hispanic 0.0% ±1.0 pts 0.0% 1.1% 0.3%
Two or more races, not Hispanic 6.4% ±3.2 pts 4.5% 5.2% 4.4%
Some other race alone, not Hispanic 0.6% ±0.9 pts 0.4% 0.9% 0.6%
Born outside the United States 17.7% ±3.9 pts 20.5% 35.7% 27.0%
Speak a language other than English at home (age 5+) 29.1% ±6.7 pts 29.0% 45.8% 44.4%
Civilian veterans (age 18+) 3.3% ±1.6 pts 3.4% 2.9% 4.3%
With a disability 10.1% ±3.5 pts 8.6% 9.4% 11.6%
No health insurance coverage 1.8% ±1.4 pts 1.7% 3.8% 6.6%
High school graduate or higher (age 25+) 98.7% ±1.5 pts 98.6% 90.2% 84.7%
Bachelor's degree or higher (age 25+) 81.3% ±6.3 pts 83.1% 53.7% 37.1%
Graduate or professional degree (age 25+) 54.7% ±6.4 pts 52.3% 24.1% 14.4%
Lived in the same house a year earlier 83.4% ±5.6 pts 85.3% 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 6114 earn?

Half of the 1,277 households in Census Tract 6114 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
Measure Tract 6114AthertonSan Mateo CountyCalifornia
Median household income $250,000 or more $250,000 or more $158,855 $99,122
Mean household income $562,677 ±$89,342 $580,438 $231,822 $140,436
Per capita income $174,701 ±$30,021 $188,631 $84,288 $49,513
People below the poverty line 7.9% ±5.8 pts 5.3% 6.7% 12.0%
Children under 18 below the poverty line 14.3% ±18.3 pts 8.1% 6.2% 15.0%
Households receiving SNAP 0.0% ±3.3 pts 0.0% 5.1% 12.4%
Households with a computer 98.7% ±2.4 pts 99.0% 97.7% 96.9%
Households with a broadband subscription 98.7% ±2.4 pts 97.6% 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 6114?

Owners occupy 84.1% of Census Tract 6114's occupied homes and renters 15.9%. 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
Measure Tract 6114AthertonSan 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 $3,500 or more $2,922 $2,036
Renters paying 35% or more of income on rent 19.3% ±29.6 pts 18.0% 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 homes 84.1% ±9.6 pts 87.6% 58.5% 55.9%
Renter-occupied homes 15.9% ±9.6 pts 12.4% 41.5% 44.1%
Housing units 1,575 ±149 2,667 287,184 14,644,735
Single-family detached homes 95.8% ±3.1 pts 97.3% 55.3% 57.0%
Mobile homes 0.0% ±2.7 pts 0.0% 1.1% 3.5%
Built 2020 or later 2.6% ±2.1 pts 2.3% 1.0% 1.3%
Built 2010 to 2019 15.2% ±6.3 pts 12.3% 5.4% 6.5%
Built 1939 or earlier 22.2% ±8.3 pts 17.2% 8.6% 8.9%
Households with no vehicle 2.3% ±2.3 pts 1.7% 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 6114 get to work?

43.2% of Census Tract 6114's workers drive alone and 36.8% work from home. The average trip to work takes 22.2 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
Measure Tract 6114AthertonSan Mateo CountyCalifornia
In the labor force (age 16+) 47.4% ±6.0 pts 48.2% 67.3% 63.8%
Unemployment rate 3.9% ±3.0 pts 3.2% 4.8% 6.6%
Drove alone to work 43.2% ±9.1 pts 44.9% 56.7% 65.7%
Carpooled 9.4% ±5.9 pts 7.0% 8.7% 9.5%
Public transportation 2.5% ±2.8 pts 1.7% 5.1% 2.9%
Walked 6.2% ±4.4 pts 3.8% 2.3% 2.4%
Worked from home 36.8% ±9.3 pts 40.8% 24.3% 17.2%
Mean travel time to work 22.2 min ±5.3 23.2 min 26.4 min 28.7 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 6114 compare with the other tracts in San Mateo County?

Among San Mateo County's tracts with a reliable estimate, Census Tract 6114 ranks as shown below (1 = highest).

Census Tract 6114's rank among the tracts of San Mateo County
MeasureIn San Mateo County
Population87th of 172
Residents per square mile157th of 173
Median household income1st of 172
Per capita income6th of 172
Median home value1st of 171
Median gross rent1st of 169
Bachelor's degree or higher11th of 172
Median age12th of 172
Owner-occupied share27th of 171

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 6114?

2 of the 18 figures for Census Tract 6114 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