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2026 Compare Cities People:
Aliso Viejo, CA vs Deerfield, IL

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Highlights
- Deerfield is 0% more densely populated than Aliso Viejo.
- People are 24.9% more likely to be married in Deerfield.
- The Median Age is 6.9 years older in Deerfield.
 Aliso Viejo, CADeerfield, ILUnited States
 Population  Unlock19,228329,725,481
 Female Population52.3%  Unlock50.5%
 Male Population47.7%  Unlock49.5%
 Median Age  Unlock44.338.4
 space3
 Population - 201047,821  Unlock309,327,143
 Population - 2000  Unlock18,420285,036,114
 Population - 19907,612  Unlock251,960,433
 Pop. 2000 to Now  Unlock0.6%15.6%
 Pop. 1990 to Now562.3%  Unlock30.8%
 space4
 Population Density  Unlock3,477.093.4
 Land Area6.9  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Aliso Viejo, CADeerfield, ILUnited States
 Age 0 to 47.8%  Unlock5.9%
 Age 5 to 9  Unlock7.8%6.1%
 Age 10 to 146.8%  Unlock6.6%
 Age 15 to 17  Unlock4.8%3.9%
 Age 18 to 203.3%  Unlock4.0%
 Age 21 to 24  Unlock3.7%5.2%
 Age 25 to 3413.0%  Unlock13.8%
 Age 35 to 44  Unlock12.6%12.9%
 Age 45 to 5416.3%  Unlock12.6%
 Age 55 to 59  Unlock8.2%6.7%
 Age 60 to 645.3%  Unlock6.3%
 Age 65 to 74  Unlock8.7%9.6%
 Age 75 to 842.4%  Unlock4.5%
 Age 85 and over  Unlock3.5%1.9%
 space1
 Race
 Aliso Viejo, CADeerfield, ILUnited States
 White56.1%  Unlock59.4%
 Black  Unlock0.4%12.2%
 Asian15.4%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races5.3%  Unlock3.2%
 Hispanic  Unlock4.1%18.4%
 space2
 Marriage & Family
 Aliso Viejo, CADeerfield, ILUnited States
 Married Population53.7%  Unlock49.8%
     Currently Married  Unlock67.0%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock32.9%50.2%
 Never Married31.3%  Unlock33.8%
 Divorced  Unlock7.6%10.8%
 Widowed3.6%  Unlock5.6%
 space5
 Household Size  Unlock2.562.60
 Households18,999  Unlock124,010,992
 Family Households  Unlock5,63480,755,759
     Married couple, w/children45.7%  Unlock30.5%
     Married couple, no children  Unlock52.8%42.9%
 Non Family Households5,966  Unlock43,255,233
     Single householder, w/children  Unlock6.6%15.8%
     Single householder, no children11.3%  Unlock10.8%
Voting
Reviews for Aliso Viejo    8 Reviews
Lisa · Aliso Viejo, CA
Aliso Viejo is a wonderful place to live!
Over 4 years ago

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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Sol · Aliso Viejo, CA
Beautiful city
Over 5 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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T · Aliso Viejo, CA
Master planning at its finest
Over 7 years ago

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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Reviews for Deerfield    2 Reviews
Michelle · Deerfield, IL
Friendly, caring Chicagoland community
Over 5 years ago

We moved to Deerfield in 1994, and loved it so much we moved across town 16 years later. Top-ranked schools, excellent home values, and friendly neighbors are all big  More

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HERB · Deerfield, IL
great place to bring up kids.
Over 19 years ago

The school system is the reason we moved here 15 years ago. Great  More

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Learn More About Aliso Viejo, California
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