Ontario, CA Demographics

A map of Ontario's Population by Race

Ontario, California had a population of 175,265 in 2020. It was 13.7% White, 5.9% Black, 9.0% Asian, 68.4% Hispanic, 1.0% Native American/Other, and 2.0% Multiracial. This map presents the population of Ontario, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 1,611 places in California, Ontario is the 27th most populous. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs).

Ontario's White Population

23,997 residents of Ontario identify as White, or 13.7%. This makes the White share of the population of Ontario considerably less than the White share of the population of California (34.7% White). Of the 1,611 places in California, Ontario is ranked #1382 in terms of White residents as a share of the population.

Ontario is more White than neighboring Montclair (10.6% White). Ontario is less White than neighboring Chino (20.6% White), Eastvale (19.5% White), Rancho Cucamonga (34.4% White), and Upland (35.1% White).

Ontario's Black Population

10,336 residents of Ontario identify as Black, or 5.9%. This makes the Black share of the population of Ontario roughly similar to the Black share of the population of California (5.4% Black). Of the 1,611 places in California, Ontario is ranked #173 in terms of Black residents as a share of the population.

Ontario is more Black than neighboring Chino (5.7% Black), and Montclair (4.1% Black). Ontario is less Black than neighboring Eastvale (8.7% Black), Rancho Cucamonga (8.7% Black), and Upland (6.1% Black).

Ontario's Asian Population

15,693 residents of Ontario identify as Asian, or 9.0%. This makes the Asian share of the population of Ontario slightly less than the Asian share of the population of California (15.1% Asian). Of the 1,611 places in California, Ontario is ranked #328 in terms of Asian residents as a share of the population.

Ontario is less Asian than neighboring Chino (18.9% Asian), Eastvale (29.6% Asian), Rancho Cucamonga (14.4% Asian), Upland (9.8% Asian), and Montclair (11.2% Asian).

Ontario's Hispanic Population

119,928 residents of Ontario identify as Hispanic, or 68.4%. This makes the Hispanic share of the population of Ontario considerably larger than the Hispanic share of the population of California (39.4% Hispanic). Of the 1,611 places in California, Ontario is ranked #252 in terms of Hispanic residents as a share of the population.

Ontario is more Hispanic than neighboring Chino (51.2% Hispanic), Eastvale (37.5% Hispanic), Rancho Cucamonga (37.4% Hispanic), and Upland (44.5% Hispanic). Ontario is less Hispanic than neighboring Montclair (71.9% Hispanic).

Ontario's Native American/Other Population

1,757 residents of Ontario identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.0%. This makes the Native American/Other share of the population of Ontario roughly similar to the Native American/Other share of the population of California (1.3% Native American/Other). Of the 1,611 places in California, Ontario is ranked #965 in terms of Native American/Other residents as a share of the population.

Ontario is more Native American/Other than neighboring Chino (0.9% Native American/Other), and Montclair (0.7% Native American/Other).

Ontario's Multiracial Population

3,554 residents of Ontario identify as Multiracial, or 2.0%. This makes the Multiracial share of the population of Ontario roughly similar to the Multiracial share of the population of California (4.1% Multiracial). Of the 1,611 places in California, Ontario is ranked #1323 in terms of Multiracial residents as a share of the population.

Ontario is more Multiracial than neighboring Montclair (1.6% Multiracial). Ontario is less Multiracial than neighboring Chino (2.7% Multiracial), Eastvale (3.7% Multiracial), Rancho Cucamonga (4.1% Multiracial), and Upland (3.5% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.