Census tract · San Bernardino County
Census Tract 31.01, San Bernardino County, California
Census Tract 31.01, GEOID 06071003101, in San Bernardino County, California, entirely within Fontana. 4,514 residents in the ACS 2020-2024 5-year estimates (±845); the 2020 Census counted 4,927.
Residents, 2020-2024
4,514
±845 (90% margin)
2020 Census count: 4,927
Median household income
$77,632
±$51,642 (90% margin)
San Bernardino County: $85,478
Median home value
$522,200
±$64,665 (90% margin)
San Bernardino County: $505,000
Median gross rent
$1,610
±$136 (90% margin)
San Bernardino County: $1,801
Where is Census Tract 31.01?
Census Tract 31.01 is one of 466 census tracts in San Bernardino County, California. It covers 0.53 square miles of land, 9,261 residents per square mile in 2020. Its GEOID, 06071003101, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Fontana | 100% |
5 census tracts border Census Tract 31.01: Tract 24.05 ($77,706), Tract 25.03 ($85,125), Tract 28.04 ($61,477), Tract 31.02 ($62,484) and Tract 33.01 ($81,250). 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 31.01?
The 2020-2024 American Community Survey puts Census Tract 31.01's population at 4,514 (±845) in 1,158 households; the 2020 Census counted 4,927 residents and 1,222 housing units.
| Measure | Tract 31.01 | Fontana |
|---|---|---|
| Total population | 4,514±845 | 214,169 |
| Households | 1,158±175 | 58,362 |
| Average household size | 3.90±0.42 | 3.66 |
| Housing units | 1,239±153 | 59,522 |
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 31.01?
The median resident of Census Tract 31.01 is 30.9 years old; 24.7% are under 18 and 4.9% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 82.6%, then non-Hispanic Black residents at 8.7%. 39.7% of residents were born outside the United States.
| Measure | Tract 31.01 | Fontana |
|---|---|---|
| Median age | 30.9±2.2 | 33.8 |
| Under 18 years | 24.7%±4.9 pts | 27.3% |
| 65 years and over | 4.9%±1.5 pts | 9.7% |
| Hispanic or Latino (any race) | 82.6%±9.5 pts | 67.6% |
| White alone, not Hispanic | 7.6%±7.0 pts | 13.0% |
| Black or African American alone, not Hispanic | 8.7%±8.4 pts | 7.6% |
| Asian alone, not Hispanic | 0.2%±0.3 pts | 8.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.5%±0.7 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.9 pts | 0.2% |
| Two or more races, not Hispanic | 0.5%±0.5 pts | 2.7% |
| Some other race alone, not Hispanic | 0.0%±0.9 pts | 0.6% |
| Born outside the United States | 39.7%±7.5 pts | 28.3% |
| Speak a language other than English at home (age 5+) | 81.2%±8.1 pts | 58.4% |
| Civilian veterans (age 18+) | 0.9%±0.8 pts | 3.2% |
| With a disability | 7.3%±2.9 pts | 9.1% |
| No health insurance coverage | 18.6%±7.3 pts | 9.1% |
| High school graduate or higher (age 25+) | 70.1%±7.8 pts | 80.0% |
| Bachelor's degree or higher (age 25+) | 9.8%±3.7 pts | 21.4% |
| Graduate or professional degree (age 25+) | 2.1%±2.2 pts | 6.3% |
| Lived in the same house a year earlier | 89.6%±8.6 pts | 92.0% |
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 31.01 earn?
The median household income for Census Tract 31.01 is published as $77,632 with a margin of ±$51,642, too wide to rely on. 10.9% of residents live below the poverty line.
| Measure | Tract 31.01 | Fontana |
|---|---|---|
| Median household income | $77,632±$51,642 | $102,821 |
| Mean household income | $99,357±$14,548 | $118,954 |
| Per capita income | $26,377±$4,017 | $33,149 |
| People below the poverty line | 10.9%±7.1 pts | 9.9% |
| Children under 18 below the poverty line | 17.8%±13.5 pts | 13.5% |
| Households receiving SNAP | 16.6%±7.1 pts | 14.8% |
| Households with a computer | 97.9%±3.1 pts | 97.9% |
| Households with a broadband subscription | 93.6%±5.3 pts | 96.3% |
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 31.01?
Owners occupy 47.3% of Census Tract 31.01's occupied homes and renters 52.7%. The median owner-occupied home is valued at $522,200 by its owner (±$64,665). The median renter pays $1,610 a month including utilities, and 39.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 31.01 | Fontana |
|---|---|---|
| Median home value (owner-occupied) | $522,200±$64,665 | $586,800 |
| Median gross rent | $1,610±$136 | $1,839 |
| Renters paying 35% or more of income on rent | 39.4%±14.2 pts | 45.0% |
| Median monthly owner costs, with a mortgage | $2,217±$105 | $2,608 |
| Owner-occupied homes | 47.3%±9.2 pts | 66.8% |
| Renter-occupied homes | 52.7%±9.2 pts | 33.2% |
| Housing units | 1,239±153 | 59,522 |
| Single-family detached homes | 59.2%±8.3 pts | 76.6% |
| Mobile homes | 2.3%±2.8 pts | 2.6% |
| Built 2020 or later | 0.0%±3.4 pts | 3.9% |
| Built 2010 to 2019 | 1.1%±1.5 pts | 7.6% |
| Built 1939 or earlier | 4.4%±4.3 pts | 1.4% |
| Households with no vehicle | 4.1%±3.8 pts | 3.2% |
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 31.01 get to work?
78.2% of Census Tract 31.01's workers drive alone. The average trip to work takes 29.5 minutes. The unemployment rate in 2020-2024 averaged 7.2%.
| Measure | Tract 31.01 | Fontana |
|---|---|---|
| In the labor force (age 16+) | 68.9%±5.8 pts | 66.3% |
| Unemployment rate | 7.2%±4.3 pts | 6.5% |
| Drove alone to work | 78.2%±8.5 pts | 72.5% |
| Carpooled | 11.7%±6.7 pts | 11.4% |
| Public transportation | 1.1%±1.6 pts | 1.3% |
| Walked | 0.5%±0.8 pts | 1.2% |
| Worked from home | 8.5%±5.7 pts | 13.0% |
| Mean travel time to work | 29.5 min±3.4 | 33.4 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 31.01 compare with the other tracts in San Bernardino County?
Among San Bernardino County's tracts with a reliable estimate, Census Tract 31.01 ranks as shown below (1 = highest).
| Measure | In San Bernardino County | In Fontana |
|---|---|---|
| Population | 256th of 464 | 33rd of 44 |
| Residents per square mile | 54th of 466 | 13th of 44 |
| Per capita income | 319th of 461 | 28th of 44 |
| Median home value | 183rd of 446 | 22nd of 42 |
| Median gross rent | 293rd of 436 | 35th of 39 |
| Poverty rate | 216th of 301 | 14th of 23 |
| Bachelor's degree or higher | 367th of 438 | 34th of 44 |
| Median age | 390th of 465 | 34th of 44 |
| Owner-occupied share | 344th of 457 | 33rd of 44 |
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 31.01?
5 of the 18 figures for Census Tract 31.01 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