PlainCities

Census tract · Contra Costa County

Census Tract 3920, Contra Costa County, California

Census Tract 3920, GEOID 06013392000, in Contra Costa County, California, entirely within Kensington. 2,474 residents in the ACS 2020-2024 5-year estimates (±334); the 2020 Census counted 2,609.

Residents, 2020-2024

2,474

±334 (90% margin)
2020 Census count: 2,609

Median household income

$250,000 or more

The survey's top or bottom value; no margin is published
Contra Costa County: $127,229

Median home value

$1,550,900

±$81,799 (90% margin)
Contra Costa County: $866,800

Median gross rent

$3,500 or more

The survey's top or bottom value; no margin is published
Contra Costa County: $2,375

Where is Census Tract 3920?

Census Tract 3920 is one of 242 census tracts in Contra Costa County, California. It covers 0.40 square miles of land, 6,572 residents per square mile in 2020. Its GEOID, 06013392000, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 3920 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Kensington100%
Census Tract 3920 (marked with a dot) in Contra Costa County, California. Boundaries: Census Bureau 2024.
3560.0236103851 3920 2 mi
Census Tract 3920 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000. Dashed: tracts outside Contra Costa County.

6 census tracts border Census Tract 3920: Tract 4211 in Alameda County ($250,000 or more), Tract 4212 in Alameda County ($250,000 or more), Tract 3560.02 ($121,275), Tract 3610 ($113,727), Tract 3851 ($152,635) and Tract 3910 ($195,250). 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 3920?

The 2020-2024 American Community Survey puts Census Tract 3920's population at 2,474 (±334) in 1,027 households; the 2020 Census counted 2,609 residents and 1,133 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 3920KensingtonContra Costa CountyCalifornia
Total population2,474±3345,1791,165,01239,287,377
Households1,027±932,144414,41713,548,091
Average household size2.41±0.192.412.782.84
Housing units1,083±872,207429,26014,644,735

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 3920?

The median resident of Census Tract 3920 is 47.4 years old; 19.4% are under 18 and 23.5% are 65 or older. The largest group is non-Hispanic white residents at 66.2%, then non-Hispanic residents of two or more races at 12.4%. 16.9% 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 3920KensingtonContra Costa CountyCalifornia
Median age47.4±8.246.640.537.9
Under 18 years19.4%±5.6 pts21.5%22.0%22.0%
65 years and over23.5%±5.6 pts23.5%17.1%15.7%
Hispanic or Latino (any race)7.5%±3.8 pts6.0%27.6%40.2%
White alone, not Hispanic66.2%±7.7 pts67.2%38.1%33.8%
Black or African American alone, not Hispanic2.1%±1.7 pts2.4%7.9%5.2%
Asian alone, not Hispanic11.1%±3.3 pts11.3%18.6%15.3%
American Indian and Alaska Native alone, not Hispanic0.4%±0.6 pts0.2%0.2%0.3%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±1.7 pts0.0%0.5%0.3%
Two or more races, not Hispanic12.4%±5.7 pts12.2%6.3%4.4%
Some other race alone, not Hispanic0.2%±0.4 pts0.7%0.8%0.6%
Born outside the United States16.9%±4.9 pts13.9%26.6%27.0%
Speak a language other than English at home (age 5+)17.2%±5.8 pts14.7%37.5%44.4%
Civilian veterans (age 18+)2.2%±1.6 pts2.6%4.2%4.3%
With a disability6.5%±3.2 pts6.3%11.1%11.6%
No health insurance coverage1.6%±1.9 pts1.4%4.6%6.6%
High school graduate or higher (age 25+)100.0%±2.2 pts99.6%89.6%84.7%
Bachelor's degree or higher (age 25+)85.4%±5.2 pts83.8%45.2%37.1%
Graduate or professional degree (age 25+)56.7%±7.3 pts52.6%17.7%14.4%
Lived in the same house a year earlier95.1%±2.7 pts95.3%90.0%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 3920 earn?

Half of the 1,027 households in Census Tract 3920 earn less than $250,000 or more a year (), against $127,229 across Contra Costa County: 1st highest of the county's 239 tracts with a reliable estimate. 4.0% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 3920KensingtonContra Costa CountyCalifornia
Median household income$250,000 or more$237,130$127,229$99,122
Mean household income$300,514±$33,700$274,259$174,872$140,436
Per capita income$123,525±$14,921$113,209$62,927$49,513
People below the poverty line4.0%±2.6 pts3.6%8.4%12.0%
Children under 18 below the poverty line0.0%±8.6 pts0.0%10.0%15.0%
Households receiving SNAP0.0%±4.1 pts1.0%8.5%12.4%
Households with a computer100.0%±4.1 pts100.0%97.7%96.9%
Households with a broadband subscription96.4%±2.8 pts97.8%95.6%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 3920?

Owners occupy 89.7% of Census Tract 3920's occupied homes and renters 10.3%. The median owner-occupied home is valued at $1,550,900 by its owner (±$81,799). The median renter pays $3,500 or more a month including utilities.

Housing, ACS 2020-2024 5-year estimates
MeasureTract 3920KensingtonContra Costa CountyCalifornia
Median home value (owner-occupied)$1,550,900±$81,799$1,539,000$866,800$734,700
Median gross rent$3,500 or more$3,500 or more$2,375$2,036
Renters paying 35% or more of income on rent10.4%±17.3 pts29.0%47.4%46.0%
Median monthly owner costs, with a mortgage$4,000 or more$4,000 or more$3,435$2,946
Owner-occupied homes89.7%±5.4 pts86.8%68.0%55.9%
Renter-occupied homes10.3%±5.4 pts13.2%32.0%44.1%
Housing units1,083±872,207429,26014,644,735
Single-family detached homes94.9%±3.0 pts96.4%67.5%57.0%
Mobile homes0.0%±3.8 pts0.5%1.4%3.5%
Built 2020 or later0.9%±1.5 pts0.5%1.1%1.3%
Built 2010 to 20190.7%±1.0 pts0.5%5.8%6.5%
Built 1939 or earlier42.0%±8.5 pts38.6%4.2%8.9%
Households with no vehicle2.7%±2.6 pts3.6%5.2%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 3920 get to work?

33.7% of Census Tract 3920's workers drive alone and 50.5% work from home. The average trip to work takes 36.2 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 3920KensingtonContra Costa CountyCalifornia
In the labor force (age 16+)71.4%±6.8 pts68.3%64.7%63.8%
Unemployment rate6.6%±4.6 pts7.6%6.5%6.6%
Drove alone to work33.7%±8.0 pts27.8%59.7%65.7%
Carpooled3.7%±2.8 pts5.4%10.0%9.5%
Public transportation7.5%±4.1 pts7.0%5.4%2.9%
Walked2.5%±3.2 pts2.5%1.8%2.4%
Worked from home50.5%±9.5 pts54.0%21.3%17.2%
Mean travel time to work36.2 min±5.832.7 min35.3 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 3920 compare with the other tracts in Contra Costa County?

Among Contra Costa County's tracts with a reliable estimate, Census Tract 3920 ranks as shown below (1 = highest).

Census Tract 3920's rank among the tracts of Contra Costa County
MeasureIn Contra Costa County
Population227th of 241
Residents per square mile71st of 241
Median household income1st of 239
Per capita income11th of 241
Median home value37th of 236
Median gross rent1st of 236
Poverty rate120th of 134
Bachelor's degree or higher5th of 239
Median age35th of 241
Owner-occupied share40th of 240

The tracts next to it on Contra Costa County's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 3452.041st$250,000 or more3,212
Tract 3461.011st$250,000 or more3,281
Tract 3461.021st$250,000 or more5,478
Tract 3462.041st$250,000 or more7,702
Tract 3462.061st$250,000 or more3,304
Tract 34701st$250,000 or more6,971
Tract 34801st$250,000 or more4,888
Tract 35121st$250,000 or more5,531
Tract 3521.021st$250,000 or more5,146
Tract 3530.011st$250,000 or more4,718
Tract 3530.021st$250,000 or more4,375
Tract 3540.021st$250,000 or more6,858
Tract 3551.131st$250,000 or more5,453
Tract 3551.211st$250,000 or more6,121
Tract 3551.231st$250,000 or more3,046
Tract 3551.241st$250,000 or more4,480
Tract 3551.251st$250,000 or more3,980
Tract 3551.261st$250,000 or more5,636
Tract 3553.021st$250,000 or more3,299
Tract 39201st$250,000 or more2,474

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 3920?

1 of the 18 figures for Census Tract 3920 on this page carries a coefficient of variation over 40% and is 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