Census tract · San Diego County
Census Tract 40, San Diego County, California
Census Tract 40, GEOID 06073004000, in San Diego County, California, entirely within San Diego. 4,253 residents in the ACS 2020-2024 5-year estimates (±825); the 2020 Census counted 4,521.
Residents, 2020-2024
4,253
±825 (90% margin)
2020 Census count: 4,521
Median household income
$56,563
±$32,797 (90% margin)
San Diego County: $106,268
Median home value
$616,200
±$106,771 (90% margin)
San Diego County: $854,700
Median gross rent
$1,927
±$221 (90% margin)
San Diego County: $2,246
Where is Census Tract 40?
Census Tract 40 is one of 737 census tracts in San Diego County, California. It covers 0.33 square miles of land, 13,659 residents per square mile in 2020. Its GEOID, 06073004000, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Diego | 100% |
4 census tracts border Census Tract 40: Tract 35.01 ($61,722), Tract 39.01 ($73,324), Tract 41.01 ($62,365) and Tract 48 ($61,787). 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 40?
The 2020-2024 American Community Survey puts Census Tract 40's population at 4,253 (±825) in 1,183 households; the 2020 Census counted 4,521 residents and 1,269 housing units.
| Measure | Tract 40 | San Diego |
|---|---|---|
| Total population | 4,253±825 | 1,389,526 |
| Households | 1,183±169 | 530,412 |
| Average household size | 3.57±0.38 | 2.52 |
| Housing units | 1,235±159 | 568,668 |
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 40?
The median resident of Census Tract 40 is 29.2 years old; 30.8% are under 18 and 9.2% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 87.2%, then non-Hispanic white residents at 8.8%. 28.7% of residents were born outside the United States.
| Measure | Tract 40 | San Diego |
|---|---|---|
| Median age | 29.2±3.0 | 36.2 |
| Under 18 years | 30.8%±8.5 pts | 18.4% |
| 65 years and over | 9.2%±4.3 pts | 14.6% |
| Hispanic or Latino (any race) | 87.2%±5.0 pts | 29.8% |
| White alone, not Hispanic | 8.8%±5.1 pts | 40.9% |
| Black or African American alone, not Hispanic | 3.4%±2.3 pts | 5.3% |
| Asian alone, not Hispanic | 0.3%±0.5 pts | 17.3% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.0 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.0 pts | 0.4% |
| Two or more races, not Hispanic | 0.3%±0.4 pts | 5.5% |
| Some other race alone, not Hispanic | 0.0%±1.0 pts | 0.7% |
| Born outside the United States | 28.7%±6.3 pts | 25.1% |
| Speak a language other than English at home (age 5+) | 80.1%±6.0 pts | 39.0% |
| Civilian veterans (age 18+) | 5.3%±3.5 pts | 6.4% |
| With a disability | 8.2%±3.5 pts | 10.5% |
| No health insurance coverage | 11.1%±5.5 pts | 5.8% |
| High school graduate or higher (age 25+) | 58.6%±7.5 pts | 90.2% |
| Bachelor's degree or higher (age 25+) | 13.0%±6.2 pts | 51.0% |
| Graduate or professional degree (age 25+) | 3.9%±2.9 pts | 21.7% |
| Lived in the same house a year earlier | 91.3%±4.7 pts | 85.0% |
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 40 earn?
Half of the 1,183 households in Census Tract 40 earn less than $56,563 a year (±$32,797), against $106,268 across San Diego County: 688th highest of the county's 725 tracts with a reliable estimate. 23.1% of residents live below the poverty line.
| Measure | Tract 40 | San Diego |
|---|---|---|
| Median household income | $56,563±$32,797 | $108,077 |
| Mean household income | $79,705±$15,107 | $144,973 |
| Per capita income | $22,920±$5,417 | $57,083 |
| People below the poverty line | 23.1%±12.2 pts | 11.0% |
| Children under 18 below the poverty line | 25.1%±22.0 pts | 12.1% |
| Households receiving SNAP | 24.1%±8.7 pts | 9.6% |
| Households with a computer | 95.7%±3.9 pts | 97.7% |
| Households with a broadband subscription | 90.4%±6.9 pts | 95.2% |
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 40?
Owners occupy 32.5% of Census Tract 40's occupied homes and renters 67.5%. The median owner-occupied home is valued at $616,200 by its owner (±$106,771). The median renter pays $1,927 a month including utilities, and 69.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 40 | San Diego |
|---|---|---|
| Median home value (owner-occupied) | $616,200±$106,771 | $906,700 |
| Median gross rent | $1,927±$221 | $2,313 |
| Renters paying 35% or more of income on rent | 69.8%±15.0 pts | 44.7% |
| Median monthly owner costs, with a mortgage | $2,399±$560 | $3,252 |
| Owner-occupied homes | 32.5%±11.8 pts | 47.3% |
| Renter-occupied homes | 67.5%±11.8 pts | 52.7% |
| Housing units | 1,235±159 | 568,668 |
| Single-family detached homes | 64.7%±10.1 pts | 43.1% |
| Mobile homes | 1.9%±2.7 pts | 1.1% |
| Built 2020 or later | 0.0%±3.4 pts | 1.5% |
| Built 2010 to 2019 | 2.8%±2.9 pts | 7.6% |
| Built 1939 or earlier | 27.6%±11.7 pts | 6.4% |
| Households with no vehicle | 7.4%±5.2 pts | 6.6% |
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 40 get to work?
64.1% of Census Tract 40's workers drive alone and 5.9% work from home. The average trip to work takes 21.5 minutes.
| Measure | Tract 40 | San Diego |
|---|---|---|
| In the labor force (age 16+) | 68.7%±9.1 pts | 68.1% |
| Unemployment rate | 8.1%±5.7 pts | 6.0% |
| Drove alone to work | 64.1%±10.8 pts | 62.6% |
| Carpooled | 17.1%±8.6 pts | 7.7% |
| Public transportation | 8.1%±8.0 pts | 2.7% |
| Walked | 1.5%±2.4 pts | 3.4% |
| Worked from home | 5.9%±3.8 pts | 21.2% |
| Mean travel time to work | 21.5 min±3.1 | 23.5 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 40 compare with the other tracts in San Diego County?
Among San Diego County's tracts with a reliable estimate, Census Tract 40 ranks as shown below (1 = highest).
| Measure | In San Diego County | In San Diego |
|---|---|---|
| Population | 371st of 735 | 159th of 327 |
| Residents per square mile | 95th of 736 | 67th of 328 |
| Median household income | 688th of 725 | 305th of 319 |
| Per capita income | 708th of 734 | 310th of 326 |
| Median home value | 585th of 703 | 257th of 308 |
| Median gross rent | 535th of 703 | 250th of 314 |
| Poverty rate | 51st of 472 | 34th of 213 |
| Bachelor's degree or higher | 701st of 732 | 308th of 325 |
| Median age | 699th of 735 | 302nd of 327 |
| Owner-occupied share | 573rd of 708 | 219th of 306 |
The tracts next to it on San Diego County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 132.03 | 685th | $57,014±$14,736 · within the margin of this tract |
| Tract 157.05 | 686th | $56,811±$10,305 · within the margin of this tract |
| Tract 117 | 687th | $56,582±$25,115 · within the margin of this tract |
| Tract 40 | 688th | $56,563±$32,797 |
| Tract 202.09 | 689th | $56,230±$10,388 · within the margin of this tract |
| Tract 22.02 | 690th | $55,790±$14,677 · within the margin of this tract |
| Tract 35.02 | 691st | $55,556±$8,513 · 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 40?
2 of the 18 figures for Census Tract 40 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