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2026 Compare Cities People:
Aliso Viejo, CA vs Mill Valley, CA

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Highlights
- Mill Valley is 0% more densely populated than Aliso Viejo.
- People are 4.4% more likely to be married in Mill Valley.
- The Median Age is 10.5 years older in Mill Valley.
 Aliso Viejo, CAMill Valley, CAUnited States
 Population  Unlock14,240329,725,481
 Female Population52.3%  Unlock50.5%
 Male Population47.7%  Unlock49.5%
 Median Age  Unlock47.938.4
 space3
 Population - 201047,821  Unlock309,327,143
 Population - 2000  Unlock13,600285,036,114
 Population - 19907,612  Unlock251,960,433
 Pop. 2000 to Now  Unlock5.3%15.6%
 Pop. 1990 to Now562.3%  Unlock30.8%
 space4
 Population Density  Unlock2,989.793.4
 Land Area6.9  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Aliso Viejo, CAMill Valley, CAUnited States
 Age 0 to 47.8%  Unlock5.9%
 Age 5 to 9  Unlock5.8%6.1%
 Age 10 to 146.8%  Unlock6.6%
 Age 15 to 17  Unlock6.1%3.9%
 Age 18 to 203.3%  Unlock4.0%
 Age 21 to 24  Unlock1.5%5.2%
 Age 25 to 3413.0%  Unlock13.8%
 Age 35 to 44  Unlock12.2%12.9%
 Age 45 to 5416.3%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 645.3%  Unlock6.3%
 Age 65 to 74  Unlock11.6%9.6%
 Age 75 to 842.4%  Unlock4.5%
 Age 85 and over  Unlock3.0%1.9%
 space1
 Race
 Aliso Viejo, CAMill Valley, CAUnited States
 White56.1%  Unlock59.4%
 Black  Unlock1.4%12.2%
 Asian15.4%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock1.0%0.4%
 Two or More Races5.3%  Unlock3.2%
 Hispanic  Unlock3.0%18.4%
 space2
 Marriage & Family
 Aliso Viejo, CAMill Valley, CAUnited States
 Married Population53.7%  Unlock49.8%
     Currently Married  Unlock55.6%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock43.9%50.2%
 Never Married31.3%  Unlock33.8%
 Divorced  Unlock12.5%10.8%
 Widowed3.6%  Unlock5.6%
 space5
 Household Size  Unlock2.522.60
 Households18,999  Unlock124,010,992
 Family Households  Unlock3,81480,755,759
     Married couple, w/children45.7%  Unlock30.5%
     Married couple, no children  Unlock49.5%42.9%
 Non Family Households5,966  Unlock43,255,233
     Single householder, w/children  Unlock9.8%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 Mill Valley    7 Reviews
Thomas · Chatham, NJ
Mill Valley Tiburon wonderful
Over 5 years ago

I lived in southern Marin County for 20 years and lived it. Just moved  More

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chris · Mill Valley, CA
Pristine and Costly
Over 16 years ago

Mill Valley is a perfect place to live and raise a family, if you don't mind a cost of living index of 233. Don't distress - go mountain biking or hiking with  More

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Robbin · Mill Valley, CA
California
Over 17 years ago

Good weather all year around. Great public schools. Cost of living very high. Crime low wonderful outdoor activities nearby like hiking, beaches,  More

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Learn More About Aliso Viejo, California
Overview
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Learn More About Mill Valley, California
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