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2025 Compare Cities People:
Mercer Island, WA vs Kennewick, WA

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Highlights
- Kennewick is 0% more densely populated than Mercer Island.
- People are 20.8% less likely to be married in Kennewick.
- The Median Age is 10.2 years younger in Kennewick.
 Mercer Island, WAKennewick, WAUnited States
 Population  Unlock83,082329,725,481
 Female Population52.9%  Unlock50.5%
 Male Population47.1%  Unlock49.5%
 Median Age  Unlock35.338.4
 space3
 Population - 201022,770  Unlock309,327,143
 Population - 2000  Unlock54,693285,036,114
 Population - 199020,816  Unlock251,960,433
 Pop. 2000 to Now  Unlock54.5%15.6%
 Pop. 1990 to Now24.5%  Unlock30.8%
 space4
 Population Density  Unlock3,026.893.4
 Land Area6.4  Unlock3,531,905.4
 Water Area  Unlock1.4264,836.8
 space
 Est. Total Population By Age
 Mercer Island, WAKennewick, WAUnited States
 Age 0 to 43.8%  Unlock5.9%
 Age 5 to 9  Unlock8.1%6.1%
 Age 10 to 148.2%  Unlock6.6%
 Age 15 to 17  Unlock4.2%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock5.0%5.2%
 Age 25 to 348.2%  Unlock13.8%
 Age 35 to 44  Unlock12.9%12.9%
 Age 45 to 5416.9%  Unlock12.6%
 Age 55 to 59  Unlock5.8%6.7%
 Age 60 to 646.5%  Unlock6.3%
 Age 65 to 74  Unlock9.4%9.6%
 Age 75 to 845.5%  Unlock4.5%
 Age 85 and over  Unlock2.0%1.9%
 space1
 Race
 Mercer Island, WAKennewick, WAUnited States
 White66.8%  Unlock59.4%
 Black  Unlock1.9%12.2%
 Asian21.3%  Unlock5.6%
 Native American  Unlock0.5%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races6.9%  Unlock3.2%
 Hispanic  Unlock29.4%18.4%
 space2
 Marriage & Family
 Mercer Island, WAKennewick, WAUnited States
 Married Population64.7%  Unlock49.8%
     Currently Married  Unlock49.7%48.0%
 Married but Separated0.4%  Unlock1.8%
 Single Population  Unlock48.8%50.2%
 Never Married21.7%  Unlock33.8%
 Divorced  Unlock13.2%10.8%
 Widowed5.8%  Unlock5.6%
 space5
 Household Size  Unlock2.692.60
 Households9,758  Unlock124,010,992
 Family Households  Unlock20,79480,755,759
     Married couple, w/children42.3%  Unlock30.5%
     Married couple, no children  Unlock41.8%42.9%
 Non Family Households2,855  Unlock43,255,233
     Single householder, w/children  Unlock19.3%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 Kennewick    24 Reviews
RODNEY · Kennewick, WA
Rich culture and world renowned geography.
Over 3 years ago

Born here and lived most of my 48 years here. If people haven't gotten out and explored the versatility of this place to entertain a population at my levels and options  More

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K · Pasco, WA
Smoky air, hot, no greenery, bad food
Over 4 years ago

I have lived here a few years and it’s the worst place I’ve ever been. The “ nice weather” people refer to is 100 degree hot can’t even stand outside at 9am without  More

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Mike · Kennewick, WA
Good place to live
Over 4 years ago

I’ve lived here for 30 years. Very good place to live. Three major rivers meet here. The Columbia, Snake and Yakima rivers. So if you like fishing or boating it’s a  More

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Learn More About Mercer Island, Washington
Overview
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Learn More About Kennewick, Washington
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