2025 Compare Cities People:
Costa Mesa, CA vs Aliso Viejo, CA

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Highlights
- Aliso Viejo is 0% more densely populated than Costa Mesa.
- People are 19.1% more likely to be married in Aliso Viejo.
- The Median Age is 1.4 years older in Aliso Viejo.
 Costa Mesa, CAAliso Viejo, CAUnited States
 Population  Unlock51,943329,725,481
 Female Population49.2%  Unlock50.5%
 Male Population50.8%  Unlock49.5%
 Median Age  Unlock37.438.4
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 Population - 2010110,137  Unlock309,327,143
 Population - 2000  Unlock40,166285,036,114
 Population - 199096,357  Unlock251,960,433
 Pop. 2000 to Now  Unlock25.5%15.6%
 Pop. 1990 to Now16.6%  Unlock30.8%
 space4
 Population Density  Unlock7,507.393.4
 Land Area15.8  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
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 Est. Total Population By Age
 Costa Mesa, CAAliso Viejo, CAUnited States
 Age 0 to 45.7%  Unlock5.9%
 Age 5 to 9  Unlock6.9%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock4.3%3.9%
 Age 18 to 203.3%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 3419.6%  Unlock13.8%
 Age 35 to 44  Unlock16.2%12.9%
 Age 45 to 5413.4%  Unlock12.6%
 Age 55 to 59  Unlock7.3%6.7%
 Age 60 to 644.9%  Unlock6.3%
 Age 65 to 74  Unlock4.9%9.6%
 Age 75 to 843.0%  Unlock4.5%
 Age 85 and over  Unlock1.4%1.9%
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 Race
 Costa Mesa, CAAliso Viejo, CAUnited States
 White49.1%  Unlock59.4%
 Black  Unlock2.5%12.2%
 Asian9.0%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.6%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races3.7%  Unlock3.2%
 Hispanic  Unlock20.0%18.4%
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 Marriage & Family
 Costa Mesa, CAAliso Viejo, CAUnited States
 Married Population45.1%  Unlock49.8%
     Currently Married  Unlock52.9%48.0%
 Married but Separated1.7%  Unlock1.8%
 Single Population  Unlock46.3%50.2%
 Never Married41.0%  Unlock33.8%
 Divorced  Unlock11.4%10.8%
 Widowed3.4%  Unlock5.6%
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 Household Size  Unlock2.712.60
 Households41,243  Unlock124,010,992
 Family Households  Unlock13,03380,755,759
     Married couple, w/children32.7%  Unlock30.5%
     Married couple, no children  Unlock32.8%42.9%
 Non Family Households16,740  Unlock43,255,233
     Single householder, w/children  Unlock10.3%15.8%
     Single householder, no children11.8%  Unlock10.8%
Reviews for Costa Mesa    8 Reviews

Over 15 years ago

Costa mesa has awesome shopping but is way too crowded and I have had 3 cars stolen in the past 5 years along with countless break-ins and theft. Expensive. Close to  More

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Over 16 years ago

Costa Mesa has a near perfect climate . . . plenty of sun but rarely over 100 degrees (our house doesn't even have AC). Nestled between Newport Beach and Huntington  More

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We have a good amount of low-income, medium-income, and relatively high-income  More

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Reviews for Aliso Viejo    8 Reviews

We've lived here in Aliso Viejo now for two years and just love it! It's clean, extremely walkable, little to no crime and relatively affordable when compared to Los  More

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Over 4 years ago

We just moved here from the East Coast and we absolutely love it. It’s pretty peaceful, has beautiful views of the city, and it’s close to the beach and many parks.  More

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We've liked here for 4yrs now and it is one of the most convenient cities I've ever lived in. Our youngest finished their last 2 yrs of high school here and we were  More

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