Census tract · Contra Costa County
Census Tract 3680.01, Contra Costa County, California
Census Tract 3680.01, GEOID 06013368001, in Contra Costa County, California, entirely within San Pablo. 5,498 residents in the ACS 2020-2024 5-year estimates (±634); the 2020 Census counted 5,467.
Residents, 2020-2024
5,498
±634 (90% margin)
2020 Census count: 5,467
Median household income
$102,666
±$26,807 (90% margin)
Contra Costa County: $127,229
Median home value
$567,500
±$38,620 (90% margin)
Contra Costa County: $866,800
Median gross rent
$1,931
±$324 (90% margin)
Contra Costa County: $2,375
Where is Census Tract 3680.01?
Census Tract 3680.01 is one of 242 census tracts in Contra Costa County, California. It covers 0.30 square miles of land, 18,407 residents per square mile in 2020. Its GEOID, 06013368001, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Pablo | 100% |
5 census tracts border Census Tract 3680.01: Tract 3650.02 ($83,587), Tract 3680.02 ($67,266), Tract 3690.01 ($76,969), Tract 3720 ($98,059) and Tract 3730 ($99,808). 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 3680.01?
The 2020-2024 American Community Survey puts Census Tract 3680.01's population at 5,498 (±634) in 1,391 households; the 2020 Census counted 5,467 residents and 1,430 housing units.
| Measure | Tract 3680.01 | San Pablo |
|---|---|---|
| Total population | 5,498±634 | 31,720 |
| Households | 1,391±165 | 9,743 |
| Average household size | 3.95±0.39 | 3.18 |
| Housing units | 1,410±166 | 9,943 |
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 3680.01?
The median resident of Census Tract 3680.01 is 31.6 years old; 29.9% are under 18 and 7.4% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 70.7%, then non-Hispanic Black residents at 13.8%. 40.5% of residents were born outside the United States.
| Measure | Tract 3680.01 | San Pablo |
|---|---|---|
| Median age | 31.6±5.1 | 34.6 |
| Under 18 years | 29.9%±4.8 pts | 25.4% |
| 65 years and over | 7.4%±2.0 pts | 11.5% |
| Hispanic or Latino (any race) | 70.7%±12.7 pts | 59.8% |
| White alone, not Hispanic | 3.9%±3.2 pts | 8.8% |
| Black or African American alone, not Hispanic | 13.8%±11.5 pts | 10.1% |
| Asian alone, not Hispanic | 5.7%±3.7 pts | 14.8% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.8 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 1.1%±1.5 pts | 4.9% |
| Some other race alone, not Hispanic | 4.9%±5.2 pts | 1.5% |
| Born outside the United States | 40.5%±9.2 pts | 44.2% |
| Speak a language other than English at home (age 5+) | 74.4%±11.8 pts | 67.4% |
| Civilian veterans (age 18+) | 2.2%±1.7 pts | 2.0% |
| With a disability | 14.8%±4.2 pts | 13.5% |
| No health insurance coverage | 4.7%±3.0 pts | 8.1% |
| High school graduate or higher (age 25+) | 69.5%±6.7 pts | 75.4% |
| Bachelor's degree or higher (age 25+) | 11.4%±4.4 pts | 16.8% |
| Graduate or professional degree (age 25+) | 1.7%±2.0 pts | 3.9% |
| Lived in the same house a year earlier | 92.5%±4.9 pts | 89.4% |
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 3680.01 earn?
Half of the 1,391 households in Census Tract 3680.01 earn less than $102,666 a year (±$26,807), against $127,229 across Contra Costa County: 162nd highest of the county's 239 tracts with a reliable estimate.
| Measure | Tract 3680.01 | San Pablo |
|---|---|---|
| Median household income | $102,666±$26,807 | $79,478 |
| Mean household income | $105,456±$15,433 | $94,897 |
| Per capita income | $27,161±$3,771 | $30,103 |
| People below the poverty line | 10.4%±7.1 pts | 12.6% |
| Children under 18 below the poverty line | 8.6%±7.0 pts | 16.1% |
| Households receiving SNAP | 10.3%±6.5 pts | 19.5% |
| Households with a computer | 96.1%±3.6 pts | 94.0% |
| Households with a broadband subscription | 94.7%±3.8 pts | 90.7% |
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 3680.01?
Owners occupy 52.4% of Census Tract 3680.01's occupied homes and renters 47.6%. The median owner-occupied home is valued at $567,500 by its owner (±$38,620). The median renter pays $1,931 a month including utilities, and 50.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 3680.01 | San Pablo |
|---|---|---|
| Median home value (owner-occupied) | $567,500±$38,620 | $551,700 |
| Median gross rent | $1,931±$324 | $2,018 |
| Renters paying 35% or more of income on rent | 50.1%±23.2 pts | 44.1% |
| Median monthly owner costs, with a mortgage | $2,453±$277 | $2,279 |
| Owner-occupied homes | 52.4%±10.2 pts | 42.0% |
| Renter-occupied homes | 47.6%±10.2 pts | 58.0% |
| Housing units | 1,410±166 | 9,943 |
| Single-family detached homes | 78.7%±11.2 pts | 45.1% |
| Mobile homes | 2.7%±3.1 pts | 4.3% |
| Built 2020 or later | 0.0%±3.0 pts | 0.3% |
| Built 2010 to 2019 | 1.6%±2.4 pts | 3.0% |
| Built 1939 or earlier | 21.5%±9.4 pts | 6.3% |
| Households with no vehicle | 5.9%±4.0 pts | 8.8% |
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 3680.01 get to work?
68.8% of Census Tract 3680.01's workers drive alone and 7.3% work from home. The average trip to work takes 34.7 minutes. The unemployment rate in 2020-2024 averaged 15.3%.
| Measure | Tract 3680.01 | San Pablo |
|---|---|---|
| In the labor force (age 16+) | 66.1%±6.9 pts | 64.4% |
| Unemployment rate | 15.3%±7.0 pts | 8.5% |
| Drove alone to work | 68.8%±10.1 pts | 63.5% |
| Carpooled | 17.2%±8.4 pts | 16.2% |
| Public transportation | 2.7%±2.4 pts | 5.6% |
| Walked | 2.3%±2.9 pts | 2.3% |
| Worked from home | 7.3%±3.8 pts | 8.9% |
| Mean travel time to work | 34.7 min±3.6 | 32.3 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 3680.01 compare with the other tracts in Contra Costa County?
Among Contra Costa County's tracts with a reliable estimate, Census Tract 3680.01 ranks as shown below (1 = highest).
| Measure | In Contra Costa County | In San Pablo |
|---|---|---|
| Population | 84th of 241 | 4th of 7 |
| Residents per square mile | 8th of 241 | 1st of 7 |
| Median household income | 162nd of 239 | 1st of 7 |
| Per capita income | 231st of 241 | 6th of 7 |
| Median home value | 205th of 236 | 4th of 7 |
| Median gross rent | 211th of 236 | 5th of 7 |
| Bachelor's degree or higher | 231st of 239 | 7th of 7 |
| Median age | 230th of 241 | 6th of 7 |
| Owner-occupied share | 192nd of 240 | 3rd of 7 |
The tracts next to it on Contra Costa County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 3340.07 | 159th | $103,401±$33,410 · within the margin of this tract |
| Tract 3570 | 160th | $103,333±$26,084 · within the margin of this tract |
| Tract 3270.01 | 161st | $102,675±$15,092 · within the margin of this tract |
| Tract 3680.01 | 162nd | $102,666±$26,807 |
| Tract 3551.20 | 163rd | $102,485±$24,235 · within the margin of this tract |
| Tract 3060.04 | 164th | $102,404±$12,462 · within the margin of this tract |
| Tract 3240.02 | 165th | $102,007±$17,902 · within the margin of this tract |
"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 3680.01?
3 of the 18 figures for Census Tract 3680.01 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