PlainCities

Census tract · Contra Costa County

Census Tract 3480, Contra Costa County, California

Census Tract 3480, GEOID 06013348000, in Contra Costa County, California, mostly within Lafayette (93% of its census blocks). 4,888 residents in the ACS 2020-2024 5-year estimates (±470); the 2020 Census counted 4,835.

Residents, 2020-2024

4,888

±470 (90% margin)
2020 Census count: 4,835

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

$2,000,000 or more

The survey's top or bottom value; no margin is published
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 3480?

Census Tract 3480 is one of 242 census tracts in Contra Costa County, California. It covers 4.21 square miles of land, 1,148 residents per square mile in 2020. Its GEOID, 06013348000, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 3480 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Lafayette93%
Orinda2%
Census Tract 3480 (marked with a dot) in Contra Costa County, California. Boundaries: Census Bureau 2024.
3400.0434103470349035003540.02 3480 2 mi
Census Tract 3480 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

6 census tracts border Census Tract 3480: Tract 3400.04 ($171,218), Tract 3410 ($157,959), Tract 3470 ($250,000 or more), Tract 3490 ($150,719), Tract 3500 ($192,961) and Tract 3540.02 ($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 3480?

The 2020-2024 American Community Survey puts Census Tract 3480's population at 4,888 (±470) in 1,605 households; the 2020 Census counted 4,835 residents and 1,748 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 3480LafayetteContra Costa CountyCalifornia
Total population4,888±47025,2851,165,01239,287,377
Households1,605±1539,623414,41713,548,091
Average household size3.02±0.152.622.782.84
Housing units1,704±1489,998429,26014,644,735

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 3480?

The median resident of Census Tract 3480 is 43.4 years old; 30.5% are under 18 and 20.5% are 65 or older. The largest group is non-Hispanic white residents at 76.9%, then non-Hispanic residents of two or more races at 9.2%. 8.7% 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.
MeasureTract 3480LafayetteContra Costa CountyCalifornia
Median age43.4±4.945.740.537.9
Under 18 years30.5%±3.1 pts25.7%22.0%22.0%
65 years and over20.5%±3.4 pts21.3%17.1%15.7%
Hispanic or Latino (any race)6.4%±3.3 pts8.0%27.6%40.2%
White alone, not Hispanic76.9%±5.4 pts71.8%38.1%33.8%
Black or African American alone, not Hispanic0.0%±0.9 pts0.8%7.9%5.2%
Asian alone, not Hispanic7.5%±2.5 pts10.1%18.6%15.3%
American Indian and Alaska Native alone, not Hispanic0.0%±0.9 pts0.0%0.2%0.3%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±0.1 pts0.1%0.5%0.3%
Two or more races, not Hispanic9.2%±4.0 pts9.0%6.3%4.4%
Some other race alone, not Hispanic0.0%±0.9 pts0.2%0.8%0.6%
Born outside the United States8.7%±2.8 pts14.0%26.6%27.0%
Speak a language other than English at home (age 5+)13.2%±4.2 pts16.9%37.5%44.4%
Civilian veterans (age 18+)4.4%±1.6 pts4.7%4.2%4.3%
With a disability6.3%±1.7 pts6.4%11.1%11.6%
No health insurance coverage0.8%±0.9 pts0.8%4.6%6.6%
High school graduate or higher (age 25+)98.9%±0.9 pts99.0%89.6%84.7%
Bachelor's degree or higher (age 25+)86.0%±3.8 pts79.0%45.2%37.1%
Graduate or professional degree (age 25+)40.4%±6.4 pts37.8%17.7%14.4%
Lived in the same house a year earlier90.1%±4.7 pts89.6%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 3480 earn?

Half of the 1,605 households in Census Tract 3480 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.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 3480LafayetteContra Costa CountyCalifornia
Median household income$250,000 or more$228,250$127,229$99,122
Mean household income$439,970±$63,697$325,365$174,872$140,436
Per capita income$146,307±$22,390$123,402$62,927$49,513
People below the poverty line1.5%±1.4 pts2.9%8.4%12.0%
Children under 18 below the poverty line1.3%±1.9 pts1.5%10.0%15.0%
Households receiving SNAP0.4%±0.6 pts1.5%8.5%12.4%
Households with a computer99.6%±0.6 pts99.6%97.7%96.9%
Households with a broadband subscription98.3%±1.7 pts98.5%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 3480?

Owners occupy 92.0% of Census Tract 3480's occupied homes and renters 8.0%. 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 3480LafayetteContra Costa CountyCalifornia
Median home value (owner-occupied)$2,000,000 or more$2,000,000 or more$866,800$734,700
Median gross rent$3,500 or more$2,892$2,375$2,036
Renters paying 35% or more of income on rent35.0%±28.8 pts31.7%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 homes92.0%±3.7 pts77.1%68.0%55.9%
Renter-occupied homes8.0%±3.7 pts22.9%32.0%44.1%
Housing units1,704±1489,998429,26014,644,735
Single-family detached homes96.0%±3.5 pts74.3%67.5%57.0%
Mobile homes0.0%±2.5 pts0.2%1.4%3.5%
Built 2020 or later0.0%±2.5 pts1.3%1.1%1.3%
Built 2010 to 20194.3%±3.1 pts6.1%5.8%6.5%
Built 1939 or earlier7.2%±3.9 pts4.3%4.2%8.9%
Households with no vehicle1.1%±1.1 pts2.2%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 3480 get to work?

43.8% of Census Tract 3480's workers drive alone and 37.3% work from home. The average trip to work takes 31.1 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 3480LafayetteContra Costa CountyCalifornia
In the labor force (age 16+)56.4%±4.3 pts63.7%64.7%63.8%
Unemployment rate3.6%±2.7 pts4.3%6.5%6.6%
Drove alone to work43.8%±7.2 pts41.4%59.7%65.7%
Carpooled4.2%±3.2 pts1.7%10.0%9.5%
Public transportation7.2%±4.9 pts10.1%5.4%2.9%
Walked4.5%±4.7 pts2.6%1.8%2.4%
Worked from home37.3%±7.6 pts42.9%21.3%17.2%
Mean travel time to work31.1 min±5.929.3 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 3480 compare with the other tracts in Contra Costa County?

Among Contra Costa County's tracts with a reliable estimate, Census Tract 3480 ranks as shown below (1 = highest).

Census Tract 3480's rank among the tracts of Contra Costa County and of Lafayette
MeasureIn Contra Costa CountyIn Lafayette
Population115th of 2414th of 4
Residents per square mile207th of 2414th of 4
Median household income1st of 2391st of 4
Per capita income5th of 2411st of 4
Median home value1st of 2361st of 4
Median gross rent1st of 2361st of 3
Bachelor's degree or higher2nd of 2391st of 4
Median age82nd of 2413rd of 4
Owner-occupied share22nd of 2402nd of 4

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 3480?

2 of the 18 figures for Census Tract 3480 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