Ontario, California Population 2020

186,653
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Ontario is a city located in California. With a 2020 population of 186,653, it is the 25th largest city in California and the 136th largest city in the United States. Ontario is currently growing at a rate of 1.51% annually and its population has increased by 13.87% since the most recent census, which recorded a population of 163,924 in 2010. Spanning over 50 miles, Ontario has a population density of 3,736 people per square mile.

The average household income in Ontario is $73,816 with a poverty rate of 14.80%. The median rental costs in recent years comes to $1,429 per month, and the median house value is $348,200. The median age in Ontario is 32.1 years, 30.9 years for males, and 33.4 years for females. For every 100 females there are 96.9 males.

Ontario is located in southwestern San Bernardino County, California about 35 miles east of Los Angeles. Ontario is part of Southern California's Inland Empire, which is made up of Riverside and San Bernardino counties. It's also part of the Greater Los Angeles metro area, the second largest metropolitan area in the U.S. with a population of 18.7 million.

Diversity

About 27.5% of Ontario's population was born outside of the country. The city is one of many in the United States with a Hispanic majority: nearly three-quarters of Ontario's residents are Hispanic or Latino. This is in line with the rest of the Inland Empire which became majority Hispanic in 2016. The city continues to diversify with growing African-American and Asian communities as well.

Population Growth

Ontario has always attracted residents for its ideal climate, strong economy, and ideal location between San Bernardino and Los Angeles. Its population growth is expected to continue steadily at a rate of about 0.75% to 1% per year.

The area of Ontario was once an active American Indian settlement. In 1819, the San Bernardino Asistencia outpost of the San Gabriel mission was established in present-day Redlands, about 27 miles east of Ontario. The region then became part of an area called San Antonio.

It wasn't until the secularization of land holdings in California in 1834 that the area of Ontario was developed. In 1881, William and George Chaffey purchased the land along with current-day Upland. The brothers channeled water into the area to irrigate crops and prevent floods then created the main street of Euclid Avenue. The town was called a Model Colony because it balanced agriculture with urban amenities like churches and businesses but it was originally a dry town. The town was named Ontario in honor of Ontario province in Canada where the brothers were bor.

Ontario quickly attracted citrus farmers and Easterners who wanted a dry climate. By 1891, Ontario was incorporated. Fifteen years later, North Ontario broke away from the city and became Upland. Ontario quickly grew, increasing its population 10 times in the next 50 years the again in the next five decades, growing from 20,000 in the 1950s to 158,000 in 2000.

Ontario Demographics

According to the most recent ACS, the racial composition of Ontario was:

  • White: 45.85%
  • Other race: 36.46%
  • Asian: 6.26%
  • Black or African American: 5.56%
  • Two or more races: 4.59%
  • Native American: 1.02%
  • Native Hawaiian or Pacific Islander: 0.26%
The current population of Ontario, California is 186,653, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 181,107.The last official US Census in 2010 recorded the population at 163,924.

Ontario, California Population 2020

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Total Population Growth Annual Growth Rate
20204,726,23051,9301.10%
20194,674,30051,9401.11%
20184,622,36051,9301.12%
20174,570,43053,6901.17%
20164,516,74051,5101.14%
20154,465,23046,5001.04%
20144,418,73046,8201.06%
20134,371,91035,7500.82%
20124,336,16040,8200.94%
20114,295,34052,7801.23%
20104,242,5600.00%

Population by Race

Race Population Percentage
White79,58245.85%
Some Other Race63,29336.46%
Asian10,8596.26%
Black or African American9,6575.56%
Two or More Races7,9734.59%
American Indian and Alaska Native1,7681.02%
Native Hawaiian and Other Pacific Islander4480.26%
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Ontario Population Pyramid 2020

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Ontario Median Age

32.1


Total

30.9


Male

33.4


Female

Ontario Adults

There are 127,403 adults, (15,207 of whom are seniors) in Ontario.

Ontario Age Dependency

54.7

Age Dependency Ratio

13.6

Old Age Dependency Ratio

41.2

Child Dependency Ratio

Ontario Sex Ratio

Female

88,164

50.79%

Male

85,416

49.21%

Ontario Households and Families

Ontario Renter vs Owner Occupied by Household Type

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Ontario Household Types

Type Owner Renter
Married63.8%36.2%
All53%47%
Non Family44.9%55.1%
Male43.4%56.6%
Female37.2%62.8%

53.0%

Rate of Home Ownership

Type Count Average Size Owned
All49,6243.4853
Married25,4244.1863.8
Non Family11,1681.3544.9
Female9,1953.9237.2
Male3,8374.0243.4

3.95

Average Family Size

3.48

Average Household Size

6.9%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

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Ontario Education

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Education Attained Count Percentage
Less Than 9th Grade16,24915.13%
9th to 12th Grade13,48712.56%
High School Graduate28,56826.60%
Some College23,97322.33%
Associates Degree7,8557.32%
Bachelors Degree12,54011.68%
Graduate Degree4,7074.38%
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Ontario Educational Attainment by Race

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Name Total High School Bachelors
Hispanic69,82143,3406,708
Other Race35,90120,5532,782
White21,08419,4934,894
Asian8,2147,2873,649
Black6,4665,9101,421
Multiple Races3,3632,744670
Native American993714161
Islander21016068

The highest rate of high school graduation is among white people with a rate of 92.45%.

The highest rate of bachelors degrees is among asian people with a rate of 44.42%.

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Name Average Male Female
Overall$33,191$37,254$28,393
Less Than High School$23,946$28,830$17,714
High School Grad$30,651$35,147$25,524
Some College$37,341$45,967$31,790
Bachelors Degree$48,457$57,764$41,688
Graduate Degree$58,565$63,015$54,386

$33,191

Average Earnings

$37,254

Average Male

$28,393

Average Female

Ontario Language

Ontario Language by Age

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Ontario Language

41.01% of Ontario residents speak only English, while 58.99% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 52.44% of the population.

Ontario Poverty

Ontario Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic122,37120,54416.79%
Other63,09512,91420.47%
White26,7352,0937.83%
Black9,5841,41314.74%
Asian10,8129678.94%
Multiple7,89880410.18%
Native1,76446826.53%
Islander44412127.25%

14.80%

Overall Poverty Rate

13.75%

Male Poverty Rate

15.82%

Female Poverty Rate

Poverty in Ontario

The race most likely to be in poverty in Ontario is Islander, with 27.25% below the poverty level.

The race least likely to be in poverty in Ontario is White, with 7.83% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.63%. Among those working part-time, it was 15.31%, and for those that did not work, the poverty rate was 20.32%.

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Name Poverty
Less Than High School21.49%
High School11.44%
Some College7.33%
Bachelors or Greater3.77%
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Name Poverty
Female Unemployed27.88%
Male Unemployed20.84%
Female Employed7.96%
Male Employed7.63%

Ontario Income

Ontario Income by Household Type

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Name Median Mean
Households$61,602$73,816
Families$65,237$77,252
Married Families$76,016$87,924
Non Families$40,799$51,851
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Ontario Marital Status

Ontario Marital Status

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Marriage Rates

44.4%

Overall Marriage Rate

45.8%

Male Marriage Rate

43.0%

Female Marriage Rate

Ontario Married by Age and Sex

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Ontario Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Ontario Marital Status by Race

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Ontario Veterans

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4,573

Number of Veterans

4,257

Male Veterans

316

Female Veterans

War Veterans
Vietnam1,718
Second Gulf War776
First Gulf War748
Korea263
World War II188
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Age Group Veterans
35 to 541,248
65 to 741,203
55 to 64921
75+811
18 to 34390
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Name Veterans % of Total
White3,0725.03%
Hispanic1,8562.17%
Other5501.25%
Black4776.50%
Asian2312.54%
2 or More1613.79%
Indian685.48%
Hawaiian143.92%

Ontario Veterans by Education

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7.37%

Veteran Poverty Rate

26.04%

Veteran Disability Rate

Ontario Employment Status

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67.7%

Labor Force Participation

62.7%

Employment Rate

7.4%

Unemployment Rate

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Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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62.60%

Born in California

71.85%

Native Born

28.15%

Foreign Born

16.01%

Non Citizen

12.14%

Naturalized

Place of Birth

71.85% of Ontario residents were born in the United States, with 62.60% having been born in California. 16.01% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
2020186,6532,7731.51%
2019183,8802,7731.53%
2018181,1075,6253.21%
2017175,4822,7731.61%
2016172,7092,3771.40%
2015170,3322,1331.27%
2014168,1991,0330.62%
2013167,1665010.30%
2012166,6659060.55%
2011165,7591,3900.85%
2010164,3696,3620.40%
2000158,00724,8281.72%
1990133,17944,3594.13%
198088,82024,7023.31%
197064,11817,5013.24%
196046,61723,7457.38%
195022,8728,6754.88%
194014,1976140.44%
193013,5836,3036.44%
19207,2803,0065.47%
19104,2743,55219.46%
1900722390.56%
18906830.00%