2026 Compare Cities People:
Ontario, CA vs Tustin, CA

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Highlights
- Tustin is 0% more densely populated than Ontario.
- People are 11.8% more likely to be married in Tustin.
- The Median Age is 3.0 years older in Tustin.
 Ontario, CATustin, CAUnited States
 Population  Unlock79,895329,725,481
 Female Population50.5%  Unlock50.5%
 Male Population49.5%  Unlock49.5%
 Median Age  Unlock35.638.4
 space3
 Population - 2010164,380  Unlock309,327,143
 Population - 2000  Unlock67,504285,036,114
 Population - 1990133,179  Unlock251,960,433
 Pop. 2000 to Now  Unlock18.2%15.6%
 Pop. 1990 to Now37.7%  Unlock30.8%
 space4
 Population Density  Unlock7,185.593.4
 Land Area50.0  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Ontario, CATustin, CAUnited States
 Age 0 to 46.8%  Unlock5.9%
 Age 5 to 9  Unlock6.2%6.1%
 Age 10 to 147.3%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 204.2%  Unlock4.0%
 Age 21 to 24  Unlock5.3%5.2%
 Age 25 to 3417.7%  Unlock13.8%
 Age 35 to 44  Unlock14.6%12.9%
 Age 45 to 5411.8%  Unlock12.6%
 Age 55 to 59  Unlock5.6%6.7%
 Age 60 to 645.3%  Unlock6.3%
 Age 65 to 74  Unlock7.3%9.6%
 Age 75 to 842.6%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
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 Race
 Ontario, CATustin, CAUnited States
 White14.7%  Unlock59.4%
 Black  Unlock2.3%12.2%
 Asian6.8%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.3%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races2.6%  Unlock3.2%
 Hispanic  Unlock40.0%18.4%
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 Marriage & Family
 Ontario, CATustin, CAUnited States
 Married Population47.0%  Unlock49.8%
     Currently Married  Unlock50.0%48.0%
 Married but Separated2.8%  Unlock1.8%
 Single Population  Unlock47.5%50.2%
 Never Married41.1%  Unlock33.8%
 Divorced  Unlock8.5%10.8%
 Widowed3.7%  Unlock5.6%
 space5
 Household Size  Unlock2.972.60
 Households51,068  Unlock124,010,992
 Family Households  Unlock19,47780,755,759
     Married couple, w/children33.8%  Unlock30.5%
     Married couple, no children  Unlock36.6%42.9%
 Non Family Households11,037  Unlock43,255,233
     Single householder, w/children  Unlock15.4%15.8%
     Single householder, no children15.1%  Unlock10.8%
Reviews for Ontario    6 Reviews

We've lived in this area for several years. Traveling long distances to other cities for churches. Passing a quiet, unassuming church along the way for years. Until  More

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cool  More

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I think Ontario,ca us awesome because we have an entertainment Venue and large shopping mall to please everyone of all  More

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Reviews for Tustin    8 Reviews

There's no excitement in Tustin. Totally sleepy hollow place. Good  More

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I grew up in Tustin. The major pro is it has a small town feel with access to many choices of shops and restaurants. Don't let these negative Nancys fool you the  More

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Over 18 years ago

This is a great area for road cycling. Many streets have bike lanes, there are off-road bike paths going down to the beach, and the weather is great most of the year.   More

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