Ontario, California Population 2021

193,594
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Ontario is a city located in San Bernardino County California. With a 2020 population of 193,594, it is the 25th largest city in California and the 133rd largest city in the United States . Ontario is currently growing at a rate of 2.27% annually and its population has increased by 18.10% since the most recent census, which recorded a population of 163,924 in 2010. Ontario reached it's highest population of 193,594 in 2021. Spanning over 50 miles, Ontario has a population density of 3,875 people per square mile.

The average household income in Ontario is $77,568 with a poverty rate of 13.62%. The median rental costs in recent years comes to $1,499 per month, and the median house value is $375,000. The median age in Ontario is 32.4 years, 31.7 years for males, and 33.1 years for females.

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: 48.93%
  • Other race: 32.46%
  • Asian: 6.81%
  • Black or African American: 5.47%
  • Two or more races: 5.14%
  • Native American: 1.01%
  • Native Hawaiian or Pacific Islander: 0.19%
The current population of Ontario, California is 193,594 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 180,718.The last official US Census in 2010 recorded the population at 163,924.

Ontario, California Population 2021

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

Year Population Growth Growth Rate
20214,726,81038,0900.81%
20204,688,72038,0900.81%
20194,650,63038,0900.82%
20184,612,54046,6301.01%
20174,565,91053,8701.18%
20164,512,04050,8101.13%
20154,461,23045,8901.03%
20144,415,34045,8501.04%
20134,369,49034,7700.80%
20124,334,72039,8200.92%
20114,294,90052,4801.22%
20104,242,4200.00%

Ontario Metro Area Population by Year

Population by Race

Race Population Percentage
White86,48048.93%
Some Other Race57,37132.46%
Asian12,0366.81%
Black or African American9,6655.47%
Two or More Races9,0855.14%
American Indian and Alaska Native1,7801.01%
Native Hawaiian and Other Pacific Islander3430.19%
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Ontario Population by Race

Ontario Population Pyramid $2021

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Ontario Median Age

32.4


Total

31.7


Male

33.1


Female

Ontario Adults

There are 130,330 adults, (16,301 of whom are seniors) in Ontario.

Ontario Age Dependency

55

Age Dependency Ratio

14.3

Old Age Dependency Ratio

40.7

Child Dependency Ratio

Ontario Sex Ratio

Female

90,100

50.97%

Male

86,660

49.03%

Ontario Population by Age

Ontario Renter vs Owner Occupied by Household Type

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Ontario Household Types

Type Owner Renter
Married64%36%
All53.6%46.4%
Non Family46%54%
Male41.8%58.2%
Female38.6%61.4%

53.6%

Rate of Home Ownership

Ontario Households and Families

Type Count Average Size Owned
All50,6213.4853.6
Married26,0654.1564
Non Family11,1261.3846
Female9,3583.8338.6
Male4,0724.0641.8

3.92

Average Family Size

3.48

Average Household Size

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Ontario Households by Type

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Education Attained Count Percentage
Less Than 9th Grade15,40613.87%
9th to 12th Grade13,61712.26%
High School Graduate29,75226.78%
Some College24,67522.21%
Associates Degree8,7107.84%
Bachelors Degree13,88412.50%
Graduate Degree5,0614.56%
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Ontario Educational Attainment by Sex (over 25)

Ontario Educational Attainment by Race

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Race Total High School Bachelors
Hispanic71,74946,0777,429
Other Race32,86919,4902,719
White22,03820,4215,554
Asian9,1558,1644,148
Black6,3145,7821,426
2+ Races3,9813,383693
Native American1,070769137
Islander205182

The highest rate of high school graduation is among white people with a rate of 92.66%.

The highest rate of bachelors degrees is among asian people with a rate of 45.31%.

Ontario Educational Attainment by Race

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Name Average Male Female
Overall$34,919$38,863$30,485
Less Than 9th Grade$24,772$29,192$18,878
High School Graduate$31,607$36,150$26,606
Some College$38,258$45,206$33,046
Bachelors Degree$50,316$62,157$43,087
Graduate Degree$56,576$55,943$57,832

$34,919

Average Earnings

$38,863

Average Male

$30,485

Average Female

Ontario Earnings by Educational Attainment

Ontario Language by Age

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Ontario Language

41.91% of Ontario residents speak only English, while 58.09% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 51.25% of the population.

Ontario Language

Ontario Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic122,98418,49215.04%
Other57,11310,62618.61%
White27,8792,0967.52%
Asian11,9761,52012.69%
Black9,5611,35414.16%
Multiple8,9588869.89%
Native1,77550528.45%
Islander33810.30%

13.62%

Overall Poverty Rate

12.75%

Male Poverty Rate

14.47%

Female Poverty Rate

Poverty in Ontario

The race most likely to be in poverty in Ontario is Native, with 28.45% below the poverty level.

The race least likely to be in poverty in Ontario is Islander, with 0.30% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.02%. Among those working part-time, it was 14.16%, and for those that did not work, the poverty rate was 19.21%.

Ontario Poverty

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Name Poverty
Less Than 9th Grade18.81%
High School10.44%
Some College7.67%
Bachelors or Greater3.85%

Ontario Poverty Rate by Education

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Rate Poverty
Female Unemployed29.46%
Male Unemployed19.77%
Female Employed6.72%
Male Employed6.68%

Ontario Poverty Rate by Employment Status and Sex

Ontario Income by Household Type

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Name Median Mean
Households$65,046$77,568
Families$68,424$80,435
Married Families$79,061$91,252
Non Families$48,216$55,950
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Income by Household Type

Ontario Marital Status

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Marriage Rates

44.5%

Overall Marriage Rate

45.6%

Male Marriage Rate

43.4%

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 Marital Status

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4,463

Number of Veterans

4,131

Male Veterans

332

Female Veterans

War Veterans
Vietnam1,629
Second Gulf War887
First Gulf War750
Korea230
World War II198

Ontario Veterans by War

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Age Group Veterans
65 to 741,135
35 to 541,120
55 to 64910
75+859
18 to 34439

Ontario Veterans by Age

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Name Veterans % of Total
White2,9734.49%
Hispanic1,8502.13%
Other Race5461.36%
Black4566.27%
Asian2572.55%
2+ Races1733.50%
Native American584.49%

Ontario Veterans by Race

Ontario Veterans by Education

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6.84%

Veteran Poverty Rate

29.49%

Veteran Disability Rate

Ontario Veterans by Education

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67.8%

Labor Force Participation

63.3%

Employment Rate

6.5%

Unemployment Rate

Ontario Employment by Age

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Ontario Employment by Race

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Ontario Employment by Education

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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62.72%

Born in Ontario

72.12%

Native Born

27.88%

Foreign Born

15.42%

Non Citizen

12.46%

Naturalized

Place of Birth

72.12% of Ontario residents were born in the United States, with 62.72% having been born in California. 15.42% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Ontario Place of Birth

Year Population Growth Annual Growth Rate
2021193,5944,2922.27%
2020189,3024,2922.32%
2019185,0104,2922.37%
2018180,7185,3843.07%
2017175,3342,7731.61%
2016172,5612,3511.38%
2015170,2102,1131.26%
2014168,0971,0010.60%
2013167,0964660.28%
2012166,6308740.53%
2011165,7561,3790.84%
2010164,3776,3700.40%
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%

Ontario Population by Year