Census tract · Contra Costa County

Census Tract 3320, Contra Costa County, California

Census Tract 3320, GEOID 06013332000, in Contra Costa County, California, entirely within Concord. 7,945 residents in the ACS 2020-2024 5-year estimates (±950); the 2020 Census counted 7,719.

Residents, 2020-2024

7,945

±950 (90% margin)
2020 Census count: 7,719

Median household income

$137,432

±$22,031 (90% margin)
Contra Costa County: $127,229

Median home value

$821,600

±$27,323 (90% margin)
Contra Costa County: $866,800

Median gross rent

$2,014

±$363 (90% margin)
Contra Costa County: $2,375

Where is Census Tract 3320?

Census Tract 3320 is one of 242 census tracts in Contra Costa County, California. It covers 1.16 square miles of land, 6,660 residents per square mile in 2020. Its GEOID, 06013332000, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 3320 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Concord100%
Census Tract 3320 (marked with a dot) in Contra Costa County, California. Boundaries: Census Bureau 2024.
331033323552.02 3320 1 mi
Census Tract 3320 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

3 census tracts border Census Tract 3320: Tract 3310 ($89,796), Tract 3332 ($123,964) and Tract 3552.02 ($136,354). 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 3320?

The 2020-2024 American Community Survey puts Census Tract 3320's population at 7,945 (±950) in 2,809 households; the 2020 Census counted 7,719 residents and 2,872 housing units.

Counts, ACS 2020-2024 5-year estimates
Measure Tract 3320ConcordContra Costa CountyCalifornia
Total population 7,945 ±950 124,035 1,165,012 39,287,377
Households 2,809 ±276 46,236 414,417 13,548,091
Average household size 2.79 ±0.21 2.64 2.78 2.84
Housing units 3,010 ±264 47,703 429,260 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 3320?

The median resident of Census Tract 3320 is 42.0 years old; 22.5% are under 18 and 15.6% are 65 or older. The largest group is non-Hispanic white residents at 45.9%, then Hispanic or Latino residents (of any race) at 28.4%. 22.9% 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.
Measure Tract 3320ConcordContra Costa CountyCalifornia
Median age 42.0 ±4.5 39.1 40.5 37.9
Under 18 years 22.5% ±4.2 pts 21.3% 22.0% 22.0%
65 years and over 15.6% ±3.9 pts 16.4% 17.1% 15.7%
Hispanic or Latino (any race) 28.4% ±8.9 pts 32.4% 27.6% 40.2%
White alone, not Hispanic 45.9% ±9.5 pts 41.6% 38.1% 33.8%
Black or African American alone, not Hispanic 1.3% ±1.4 pts 3.7% 7.9% 5.2%
Asian alone, not Hispanic 15.9% ±5.9 pts 13.7% 18.6% 15.3%
American Indian and Alaska Native alone, not Hispanic 0.0% ±0.5 pts 0.1% 0.2% 0.3%
Native Hawaiian and Other Pacific Islander alone, not Hispanic 0.0% ±0.5 pts 0.2% 0.5% 0.3%
Two or more races, not Hispanic 6.4% ±5.2 pts 7.1% 6.3% 4.4%
Some other race alone, not Hispanic 2.0% ±2.3 pts 1.1% 0.8% 0.6%
Born outside the United States 22.9% ±7.0 pts 25.5% 26.6% 27.0%
Speak a language other than English at home (age 5+) 32.5% ±9.1 pts 38.9% 37.5% 44.4%
Civilian veterans (age 18+) 4.9% ±1.8 pts 3.7% 4.2% 4.3%
With a disability 9.0% ±2.7 pts 12.1% 11.1% 11.6%
No health insurance coverage 3.9% ±2.4 pts 6.2% 4.6% 6.6%
High school graduate or higher (age 25+) 91.8% ±4.0 pts 87.3% 89.6% 84.7%
Bachelor's degree or higher (age 25+) 34.8% ±6.8 pts 37.5% 45.2% 37.1%
Graduate or professional degree (age 25+) 14.3% ±4.8 pts 11.3% 17.7% 14.4%
Lived in the same house a year earlier 91.7% ±4.6 pts 89.2% 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 3320 earn?

Half of the 2,809 households in Census Tract 3320 earn less than $137,432 a year (±$22,031), against $127,229 across Contra Costa County: 116th highest of the county's 239 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure Tract 3320ConcordContra Costa CountyCalifornia
Median household income $137,432 ±$22,031 $108,709 $127,229 $99,122
Mean household income $162,454 ±$23,377 $137,418 $174,872 $140,436
Per capita income $58,145 ±$9,728 $51,973 $62,927 $49,513
People below the poverty line 5.3% ±3.8 pts 8.2% 8.4% 12.0%
Children under 18 below the poverty line 3.4% ±5.5 pts 7.4% 10.0% 15.0%
Households receiving SNAP 8.6% ±5.6 pts 8.8% 8.5% 12.4%
Households with a computer 97.4% ±2.2 pts 97.4% 97.7% 96.9%
Households with a broadband subscription 98.4% ±2.0 pts 95.1% 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 3320?

Owners occupy 80.0% of Census Tract 3320's occupied homes and renters 20.0%. The median owner-occupied home is valued at $821,600 by its owner (±$27,323). The median renter pays $2,014 a month including utilities, and 43.4% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure Tract 3320ConcordContra Costa CountyCalifornia
Median home value (owner-occupied) $821,600 ±$27,323 $797,600 $866,800 $734,700
Median gross rent $2,014 ±$363 $2,274 $2,375 $2,036
Renters paying 35% or more of income on rent 43.4% ±22.5 pts 52.1% 47.4% 46.0%
Median monthly owner costs, with a mortgage $2,828 ±$218 $2,990 $3,435 $2,946
Owner-occupied homes 80.0% ±7.9 pts 61.6% 68.0% 55.9%
Renter-occupied homes 20.0% ±7.9 pts 38.4% 32.0% 44.1%
Housing units 3,010 ±264 47,703 429,260 14,644,735
Single-family detached homes 81.2% ±7.7 pts 58.7% 67.5% 57.0%
Mobile homes 0.0% ±1.4 pts 2.3% 1.4% 3.5%
Built 2020 or later 0.5% ±0.8 pts 0.3% 1.1% 1.3%
Built 2010 to 2019 0.0% ±1.4 pts 2.0% 5.8% 6.5%
Built 1939 or earlier 0.4% ±0.6 pts 1.7% 4.2% 8.9%
Households with no vehicle 2.0% ±3.0 pts 6.1% 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 3320 get to work?

63.9% of Census Tract 3320's workers drive alone and 22.8% work from home. The average trip to work takes 38.9 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
Measure Tract 3320ConcordContra Costa CountyCalifornia
In the labor force (age 16+) 63.9% ±5.7 pts 66.5% 64.7% 63.8%
Unemployment rate 2.5% ±2.2 pts 5.4% 6.5% 6.6%
Drove alone to work 63.9% ±7.6 pts 61.3% 59.7% 65.7%
Carpooled 6.1% ±2.9 pts 10.3% 10.0% 9.5%
Public transportation 4.4% ±3.8 pts 6.1% 5.4% 2.9%
Walked 1.5% ±2.2 pts 2.2% 1.8% 2.4%
Worked from home 22.8% ±7.4 pts 17.6% 21.3% 17.2%
Mean travel time to work 38.9 min ±5.5 32.6 min 35.3 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 3320 compare with the other tracts in Contra Costa County?

Among Contra Costa County's tracts with a reliable estimate, Census Tract 3320 ranks as shown below (1 = highest).

Census Tract 3320's rank among the tracts of Contra Costa County and of Concord
MeasureIn Contra Costa CountyIn Concord
Population10th of 2411st of 28
Residents per square mile69th of 24114th of 28
Median household income116th of 2397th of 28
Per capita income120th of 2419th of 28
Median home value111th of 2369th of 26
Median gross rent202nd of 23628th of 28
Bachelor's degree or higher155th of 23914th of 28
Median age99th of 2419th of 28
Owner-occupied share84th of 2404th of 28

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 3551.10113th$138,269±$42,794 · within the margin of this tract3,996
Tract 3591.02114th$137,647±$16,650 · within the margin of this tract5,676
Tract 3020.06115th$137,639±$25,146 · within the margin of this tract4,192
Tract 3320116th$137,432±$22,0317,945
Tract 3040.04117th$137,232±$31,037 · within the margin of this tract3,320
Tract 3780118th$137,043±$19,535 · within the margin of this tract4,342
Tract 3552.02119th$136,354±$46,231 · within the margin of this tract3,803

"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 3320?

2 of the 18 figures for Census Tract 3320 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