City · California
Ontario, California
Ontario, city, in San Bernardino County, California. Ontario had 187,013 residents on July 1, 2025 by the Census Bureau's estimate, up 6.7% since 2020; the 2020 Census counted 175,265 and the ACS 2020-2024 5-year estimates put it at 180,547 (±75). GEOID 0653896.
Residents, July 2025 estimate
187,013
Census Bureau estimate (no margin published)
2020 Census count: 175,265 · ACS 2020-2024: 180,547 ±75
Median household income
$88,941
±$4,081 (90% margin)
California: $99,122
Median home value
$607,600
±$7,033 (90% margin)
California: $734,700
Median gross rent
$2,030
±$50 (90% margin)
California: $2,036
Where is Ontario and what county is it in?
Ontario is a city in San Bernardino County, California. It covers 50.0 square miles of land, 3,506 residents per square mile in 2020.
Ontario is in the Riverside-San Bernardino-Ontario, CA metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Ontario, and is it growing?
The Census Bureau estimates that 187,013 people lived in Ontario on July 1, 2025, up 6.7% since 2020, while California shrank 0.5%. The 2020 Census counted 175,265 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 180,547 (±75).
| Measure | Ontario | San Bernardino County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 180,547 ±75 | 2,197,104 | +3,787 |
| Households | 53,770 ±1,018 | 674,915 | +3,149 |
| Average household size | 3.34 ±0.06 | 3.20 | −0.14 |
| Housing units | 55,966 ±979 | 743,886 | +3,039 |
Ontario's population since 2000
From 158,007 in 2000 to 187,013 in 2025: up 18.4%. The 2000, 2010 and 2020 figures are census counts, each for Ontario as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Ontario?
The median resident of Ontario is 33.5 years old; 24.4% are under 18 and 10.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 68.6%, then non-Hispanic white residents at 12.3%. 27.7% of residents were born outside the United States.
| Measure | Ontario | San Bernardino County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.5 ±0.7 | 34.7 | +1.1 |
| Under 18 years | 24.4% ±0.9 pts | 25.5% | – |
| 65 years and over | 10.5% ±0.5 pts | 12.6% | – |
| Male | 48.8% ±0.9 pts | 50.0% | – |
| Hispanic or Latino (any race) | 68.6% ±1.4 pts | 55.2% | no clear change |
| White alone, not Hispanic | 12.3% ±1.0 pts | 24.7% | −3.6 pts |
| Black or African American alone, not Hispanic | 5.8% ±0.8 pts | 7.5% | no clear change |
| Asian alone, not Hispanic | 9.6% ±0.8 pts | 8.1% | +3.1 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.2% ±0.2 pts | 0.3% | – |
| Two or more races, not Hispanic | 2.9% ±0.7 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.4% ±0.2 pts | 0.6% | – |
| Born outside the United States | 27.7% ±1.2 pts | 21.6% | no clear change |
| Speak a language other than English at home (age 5+) | 55.1% ±1.7 pts | 44.3% | – |
| Civilian veterans (age 18+) | 3.4% ±0.4 pts | 4.7% | – |
| With a disability | 10.0% ±0.8 pts | 12.2% | – |
| No health insurance coverage | 9.2% ±0.7 pts | 8.0% | −1.2 pts |
| High school graduate or higher (age 25+) | 78.1% ±1.2 pts | 82.5% | – |
| Bachelor's degree or higher (age 25+) | 22.5% ±1.2 pts | 23.3% | +5.4 pts |
| Graduate or professional degree (age 25+) | 6.0% ±0.5 pts | 8.4% | – |
| Lived in the same house a year earlier | 92.5% ±0.8 pts | 90.4% | – |
| Moved from another state in the past year | 0.6% ±0.2 pts | 1.1% | – |
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 Ontario earn?
Half of Ontario's 53,770 households earn less than $88,941 a year (±$4,081), against $85,478 in San Bernardino County and $99,122 in California. In 2015-2019 the median was $80,052 in 2024 dollars, so it rose by $8,889 after inflation. 12.4% of residents live below the poverty line.
| Measure | Ontario | San Bernardino County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $88,941 ±$4,081 | $85,478 | +$8,889 |
| Mean household income | $106,768 ±$3,000 | $109,207 | – |
| Per capita income | $32,506 ±$941 | $34,343 | +$3,614 |
| People below the poverty line | 12.4% ±1.1 pts | 13.3% | no clear change |
| Children under 18 below the poverty line | 16.8% ±2.4 pts | 17.6% | −4.4 pts |
| Households receiving SNAP | 12.6% ±1.0 pts | 15.8% | – |
| Households with a computer | 97.6% ±0.5 pts | 96.9% | – |
| Households with a broadband subscription | 94.9% ±0.8 pts | 93.3% | – |
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 Ontario?
Owners occupy 58.0% of Ontario's occupied homes and renters 42.0%. The median owner-occupied home is valued at $607,600 by its owner (±$7,033). The median renter pays $2,030 a month including utilities, and 52.3% of renters pay 35% or more of their income on rent.
| Measure | Ontario | San Bernardino County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $607,600 ±$7,033 | $505,000 | +$146,090 |
| Median gross rent | $2,030 ±$50 | $1,801 | +$185 |
| Renters paying 35% or more of income on rent | 52.3% ±3.2 pts | 48.6% | +4.2 pts |
| Median monthly owner costs, with a mortgage | $2,549 ±$62 | $2,368 | – |
| Owner-occupied homes | 58.0% ±1.8 pts | 62.1% | +4.4 pts |
| Renter-occupied homes | 42.0% ±1.8 pts | 37.9% | – |
| Housing units | 55,966 ±979 | 743,886 | +3,039 |
| Homeowner vacancy rate | 0.9% ±0.5 pts | 0.9% | – |
| Rental vacancy rate | 3.6% ±1.0 pts | 3.4% | – |
| Single-family detached homes | 57.9% ±1.4 pts | 70.0% | – |
| Mobile homes | 4.0% ±0.7 pts | 5.4% | – |
| Built 2020 or later | 4.5% ±0.8 pts | 1.6% | – |
| Built 2010 to 2019 | 9.8% ±1.1 pts | 6.1% | – |
| Built 1939 or earlier | 5.2% ±0.7 pts | 3.8% | – |
| Households with no vehicle | 4.0% ±0.6 pts | 4.6% | – |
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 many new homes is Ontario building?
Builders took permits for 1,789 new housing units in Ontario in 2025 (690 in single-family houses), 9.6 per 1,000 residents against 2.6 across California.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Ontario work and get to work?
76.7% of Ontario's workers drive alone and 9.1% work from home. The average trip to work takes 31.5 minutes. The unemployment rate in 2020-2024 averaged 6.3%.
| Measure | Ontario | San Bernardino County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.2% ±1.3 pts | 62.2% | – |
| Unemployment rate | 6.3% ±0.7 pts | 7.1% | no clear change |
| Drove alone to work | 76.7% ±1.3 pts | 74.1% | – |
| Carpooled | 11.3% ±1.0 pts | 11.2% | – |
| Public transportation | 0.9% ±0.3 pts | 0.9% | – |
| Walked | 1.2% ±0.2 pts | 1.4% | – |
| Worked from home | 9.1% ±0.9 pts | 11.0% | +5.4 pts |
| Mean travel time to work | 31.5 min ±0.9 | 32.6 min | no clear change |
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 census tracts are in Ontario?
35 census tracts lie mostly in Ontario (2020 census blocks). Their median household incomes run from $56,383 (Tract 15.04) to $138,618 (Tract 19.08).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 19.06San Bernardino County | 13,555 | $137,699 |
| Tract 21.09San Bernardino County | 7,840 | $94,067 |
| Tract 22.06San Bernardino County | 7,570 | $106,023 |
| Tract 19.08San Bernardino County | 7,556 | $138,618 |
| Tract 17.02San Bernardino County | 6,402 | $106,104 |
| Tract 13.12San Bernardino County | 6,047 | $104,479 |
| Tract 18.04San Bernardino County | 5,998 | $129,314 |
| Tract 17.07San Bernardino County | 5,747 | $99,668 |
| Tract 11.04San Bernardino County | 5,637 | $72,455 |
| Tract 17.06San Bernardino County | 5,595 | $78,383 |
| Tract 10.02San Bernardino County | 5,521 | $79,413 |
| Tract 13.05San Bernardino County | 5,436 | $58,571 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Ontario) · Census block assignment files
How does Ontario compare with other places in California?
By the Census Bureau's July 2025 estimates, Ontario is the 143rd-most populous of the 19,476 U.S. incorporated places that have one and the 25th-most populous of 483 in California.
Ontario ranks 576th of 1,037 places in California with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 25th | 483 |
| Growth 2020-2025 (PEP) | 40th | 469 |
| Residents per square mile | 383rd | 1,077 |
| Median household income | 576th | 1,037 |
| Per capita income | 733rd | 1,073 |
| Median home value | 534th | 1,054 |
| Median gross rent | 397th | 987 |
| Poverty rate | 365th | 836 |
| Bachelor's degree or higher | 652nd | 988 |
| Median age | 870th | 1,075 |
| Owner-occupied share | 732nd | 1,064 |
| Work from home | 648th | 822 |
| Travel time to work | 298th | 1,069 |
Ontario's figures with every place in California (CSV)
Every place in California, sortable · Compare Ontario with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Ontario?
1 of the 57 figures for Ontario 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Ontario are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Ontario.