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2025 Compare Cities People:
Mercer Island, WA vs Coto de Caza, CA

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Highlights
- Coto de Caza is 0% more densely populated than Mercer Island.
- People are 0.1% less likely to be married in Coto de Caza.
- The Median Age is 0.3 years older in Coto de Caza.
 Mercer Island, WACoto de Caza, CAUnited States
 Population  Unlock15,873329,725,481
 Female Population52.9%  Unlock50.5%
 Male Population47.1%  Unlock49.5%
 Median Age  Unlock45.838.4
 space3
 Population - 201022,770  Unlock309,327,143
 Population - 2000  Unlock13,057285,036,114
 Population - 199020,816  Unlock251,960,433
 Pop. 2000 to Now  Unlock14.0%15.6%
 Pop. 1990 to Now24.5%  Unlock30.8%
 space4
 Population Density  Unlock2,055.893.4
 Land Area6.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Mercer Island, WACoto de Caza, CAUnited States
 Age 0 to 43.8%  Unlock5.9%
 Age 5 to 9  Unlock5.0%6.1%
 Age 10 to 148.2%  Unlock6.6%
 Age 15 to 17  Unlock6.6%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock3.6%5.2%
 Age 25 to 348.2%  Unlock13.8%
 Age 35 to 44  Unlock9.4%12.9%
 Age 45 to 5416.9%  Unlock12.6%
 Age 55 to 59  Unlock10.9%6.7%
 Age 60 to 646.5%  Unlock6.3%
 Age 65 to 74  Unlock9.1%9.6%
 Age 75 to 845.5%  Unlock4.5%
 Age 85 and over  Unlock0.6%1.9%
 space1
 Race
 Mercer Island, WACoto de Caza, CAUnited States
 White66.8%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian21.3%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races6.9%  Unlock3.2%
 Hispanic  Unlock13.6%18.4%
 space2
 Marriage & Family
 Mercer Island, WACoto de Caza, CAUnited States
 Married Population64.7%  Unlock49.8%
     Currently Married  Unlock64.3%48.0%
 Married but Separated0.4%  Unlock1.8%
 Single Population  Unlock35.4%50.2%
 Never Married21.7%  Unlock33.8%
 Divorced  Unlock5.5%10.8%
 Widowed5.8%  Unlock5.6%
 space5
 Household Size  Unlock3.152.60
 Households9,758  Unlock124,010,992
 Family Households  Unlock4,60380,755,759
     Married couple, w/children42.3%  Unlock30.5%
     Married couple, no children  Unlock50.6%42.9%
 Non Family Households2,855  Unlock43,255,233
     Single householder, w/children  Unlock5.1%15.8%
     Single householder, no children5.0%  Unlock10.8%
Voting
Reviews for Mercer Island    4 Reviews
Megan · Mercer Island, WA
Nice place to live with great schools
Over 17 years ago

Mercer Island is a wonderful family community. It feels much more "small town" than a city even though it has a population of 20,000+. People say hello and watch out  More

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A resident · Mercer Island, WA
Mercer Island - Is there a "there" there?
Over 17 years ago

Mercer Island is a suburb of Seattle, located on an island in Lake Washington. The best thing about Mercer Island is its strategically central location relative to the  More

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A resident · Mercer Island, WA
Mercer Island, WA - a suburb on an island
Over 17 years ago

Mercer Island is a suburb of Seattle, located on an island in Lake Washington. The best thing about Mercer Island is its strategically central location relative to the  More

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Reviews for Coto De Caza    1 Reviews
Debbie · Trabuco Canyon, CA
Great place to live.
Over 18 years ago

we have resided in Coto de Caza since 1989. Over the years we have looked at other cities to live, but always decide that while in Southern California, this is the best  More

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Learn More About Mercer Island, Washington
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