Census tract · Alameda County
Census Tract 4331.03, Alameda County, California
Census Tract 4331.03, GEOID 06001433103, in Alameda County, California, entirely within San Leandro. 3,667 residents in the ACS 2020-2024 5-year estimates (±536); the 2020 Census counted 3,682.
Residents, 2020-2024
3,667
±536 (90% margin)
2020 Census count: 3,682
Median household income
$78,081
±$27,874 (90% margin)
Alameda County: $129,367
Median home value
$563,100
±$115,732 (90% margin)
Alameda County: $1,090,100
Median gross rent
$2,191
±$115 (90% margin)
Alameda County: $2,357
Where is Census Tract 4331.03?
Census Tract 4331.03 is one of 379 census tracts in Alameda County, California. It covers 0.27 square miles of land, 13,739 residents per square mile in 2020. Its GEOID, 06001433103, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Leandro | 100% |
4 census tracts border Census Tract 4331.03: Tract 4330 ($102,555), Tract 4331.02 ($106,563), Tract 4331.04 ($74,589) and Tract 4332 ($95,048). 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 4331.03?
The 2020-2024 American Community Survey puts Census Tract 4331.03's population at 3,667 (±536) in 1,462 households; the 2020 Census counted 3,682 residents and 1,551 housing units.
| Measure | Tract 4331.03 | San Leandro |
|---|---|---|
| Total population | 3,667±536 | 87,826 |
| Households | 1,462±244 | 30,454 |
| Average household size | 2.51±0.25 | 2.86 |
| Housing units | 1,512±245 | 31,954 |
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 4331.03?
The median resident of Census Tract 4331.03 is 39.6 years old; 18.4% are under 18 and 17.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 35.4%, then non-Hispanic Asian residents at 24.1%. 45.1% of residents were born outside the United States.
| Measure | Tract 4331.03 | San Leandro |
|---|---|---|
| Median age | 39.6±5.6 | 41.9 |
| Under 18 years | 18.4%±5.5 pts | 18.0% |
| 65 years and over | 17.5%±7.7 pts | 18.9% |
| Hispanic or Latino (any race) | 35.4%±11.3 pts | 29.3% |
| White alone, not Hispanic | 18.1%±8.8 pts | 19.7% |
| Black or African American alone, not Hispanic | 16.9%±7.1 pts | 9.5% |
| Asian alone, not Hispanic | 24.1%±9.3 pts | 35.8% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.2 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.3%±0.5 pts | 0.7% |
| Two or more races, not Hispanic | 5.0%±4.4 pts | 4.2% |
| Some other race alone, not Hispanic | 0.3%±0.5 pts | 0.6% |
| Born outside the United States | 45.1%±7.3 pts | 38.4% |
| Speak a language other than English at home (age 5+) | 56.7%±8.1 pts | 54.5% |
| Civilian veterans (age 18+) | 4.2%±2.6 pts | 3.6% |
| With a disability | 13.1%±7.4 pts | 12.6% |
| No health insurance coverage | 7.1%±4.9 pts | 5.1% |
| High school graduate or higher (age 25+) | 76.6%±9.0 pts | 82.2% |
| Bachelor's degree or higher (age 25+) | 21.1%±7.1 pts | 33.3% |
| Graduate or professional degree (age 25+) | 7.8%±4.1 pts | 10.1% |
| Lived in the same house a year earlier | 90.4%±6.5 pts | 92.9% |
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 4331.03 earn?
Half of the 1,462 households in Census Tract 4331.03 earn less than $78,081 a year (±$27,874), against $129,367 across Alameda County: 318th highest of the county's 372 tracts with a reliable estimate. 13.7% of residents live below the poverty line.
| Measure | Tract 4331.03 | San Leandro |
|---|---|---|
| Median household income | $78,081±$27,874 | $101,420 |
| Mean household income | $94,416±$20,027 | $130,140 |
| Per capita income | $38,341±$7,470 | $47,074 |
| People below the poverty line | 13.7%±7.1 pts | 8.3% |
| Children under 18 below the poverty line | 6.8%±12.6 pts | 7.1% |
| Households receiving SNAP | 15.3%±11.4 pts | 13.0% |
| Households with a computer | 96.6%±4.0 pts | 96.1% |
| Households with a broadband subscription | 93.6%±5.0 pts | 93.4% |
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 4331.03?
Owners occupy 19.8% of Census Tract 4331.03's occupied homes and renters 80.2%. The median owner-occupied home is valued at $563,100 by its owner (±$115,732). The median renter pays $2,191 a month including utilities, and 48.3% of renters pay 35% or more of their income on rent.
| Measure | Tract 4331.03 | San Leandro |
|---|---|---|
| Median home value (owner-occupied) | $563,100±$115,732 | $844,200 |
| Median gross rent | $2,191±$115 | $2,186 |
| Renters paying 35% or more of income on rent | 48.3%±12.4 pts | 44.2% |
| Median monthly owner costs, with a mortgage | $2,100±$679 | $3,116 |
| Owner-occupied homes | 19.8%±8.9 pts | 58.1% |
| Renter-occupied homes | 80.2%±8.9 pts | 41.9% |
| Housing units | 1,512±245 | 31,954 |
| Single-family detached homes | 13.2%±6.5 pts | 57.3% |
| Mobile homes | 0.0%±2.8 pts | 2.4% |
| Built 2020 or later | 0.0%±2.8 pts | 0.2% |
| Built 2010 to 2019 | 0.0%±2.8 pts | 2.4% |
| Built 1939 or earlier | 8.1%±4.8 pts | 11.1% |
| Households with no vehicle | 10.6%±6.9 pts | 8.9% |
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 4331.03 get to work?
61.6% of Census Tract 4331.03's workers drive alone. The average trip to work takes 25.1 minutes.
| Measure | Tract 4331.03 | San Leandro |
|---|---|---|
| In the labor force (age 16+) | 66.5%±8.9 pts | 65.1% |
| Unemployment rate | 3.1%±3.0 pts | 5.3% |
| Drove alone to work | 61.6%±8.5 pts | 60.2% |
| Carpooled | 19.1%±6.9 pts | 11.9% |
| Public transportation | 6.4%±5.3 pts | 8.0% |
| Walked | 6.3%±4.2 pts | 2.1% |
| Worked from home | 2.8%±2.3 pts | 15.8% |
| Mean travel time to work | 25.1 min±3.5 | 31.2 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 4331.03 compare with the other tracts in Alameda County?
Among Alameda County's tracts with a reliable estimate, Census Tract 4331.03 ranks as shown below (1 = highest).
| Measure | In Alameda County | In San Leandro |
|---|---|---|
| Population | 243rd of 375 | 17th of 19 |
| Residents per square mile | 111th of 378 | 2nd of 19 |
| Median household income | 318th of 372 | 18th of 19 |
| Per capita income | 316th of 377 | 15th of 19 |
| Median home value | 356th of 366 | 18th of 19 |
| Median gross rent | 249th of 368 | 11th of 19 |
| Poverty rate | 86th of 263 | 3rd of 15 |
| Bachelor's degree or higher | 345th of 376 | 17th of 19 |
| Median age | 194th of 377 | 14th of 19 |
| Owner-occupied share | 339th of 366 | 19th of 19 |
The tracts next to it on Alameda County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4335 | 315th | $79,868±$24,853 · within the margin of this tract |
| Tract 4015 | 316th | $78,598±$32,308 · within the margin of this tract |
| Tract 4059.02 | 317th | $78,438±$11,493 · within the margin of this tract |
| Tract 4331.03 | 318th | $78,081±$27,874 |
| Tract 4355 | 319th | $77,981±$21,055 · within the margin of this tract |
| Tract 4086 | 320th | $77,083±$24,913 · within the margin of this tract |
| Tract 4356.01 | 321st | $76,895±$27,493 · 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 4331.03?
1 of the 18 figures for Census Tract 4331.03 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