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2025 Compare Cities People:
Hilo, HI vs Mercer Island, WA

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Highlights
- Mercer Island is 0% more densely populated than Hilo.
- People are 43.3% more likely to be married in Mercer Island.
- The Median Age is 5.6 years older in Mercer Island.
 Hilo, HIMercer Island, WAUnited States
 Population  Unlock25,506329,725,481
 Female Population51.3%  Unlock50.5%
 Male Population48.7%  Unlock49.5%
 Median Age  Unlock45.538.4
 space3
 Population - 201048,795  Unlock309,327,143
 Population - 2000  Unlock22,036285,036,114
 Population - 199037,808  Unlock251,960,433
 Pop. 2000 to Now  Unlock17.6%15.6%
 Pop. 1990 to Now25.3%  Unlock30.8%
 space4
 Population Density  Unlock3,995.993.4
 Land Area53.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Hilo, HIMercer Island, WAUnited States
 Age 0 to 44.3%  Unlock5.9%
 Age 5 to 9  Unlock7.3%6.1%
 Age 10 to 147.2%  Unlock6.6%
 Age 15 to 17  Unlock4.3%3.9%
 Age 18 to 204.1%  Unlock4.0%
 Age 21 to 24  Unlock2.9%5.2%
 Age 25 to 3413.1%  Unlock13.8%
 Age 35 to 44  Unlock11.8%12.9%
 Age 45 to 5410.2%  Unlock12.6%
 Age 55 to 59  Unlock7.9%6.7%
 Age 60 to 647.7%  Unlock6.3%
 Age 65 to 74  Unlock10.4%9.6%
 Age 75 to 845.9%  Unlock4.5%
 Age 85 and over  Unlock3.8%1.9%
 space1
 Race
 Hilo, HIMercer Island, WAUnited States
 White15.7%  Unlock59.4%
 Black  Unlock0.8%12.2%
 Asian31.1%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander10.5%  Unlock0.2%
 Other  Unlock0.7%0.4%
 Two or More Races29.2%  Unlock3.2%
 Hispanic  Unlock3.2%18.4%
 space2
 Marriage & Family
 Hilo, HIMercer Island, WAUnited States
 Married Population45.2%  Unlock49.8%
     Currently Married  Unlock64.3%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock35.3%50.2%
 Never Married38.0%  Unlock33.8%
 Divorced  Unlock7.9%10.8%
 Widowed6.7%  Unlock5.6%
 space5
 Household Size  Unlock2.602.60
 Households16,189  Unlock124,010,992
 Family Households  Unlock6,90380,755,759
     Married couple, w/children24.5%  Unlock30.5%
     Married couple, no children  Unlock48.1%42.9%
 Non Family Households5,508  Unlock43,255,233
     Single householder, w/children  Unlock4.6%15.8%
     Single householder, no children14.1%  Unlock10.8%
Voting
Reviews for Hilo    10 Reviews
Kinweigh  · Merritt Island, FL
Avoid - Especially in medical field or education
Over 2 years ago

If you’re looking at Hilo, then you’re likely being recruited in the medical or education fields. These are where the greatest needs of the community lie, and there are  More

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Steve · Denver, CO
Loved the Place
Over 4 years ago

I enjoyed living in Hawaii County for a number of years, most in Hilo. While Hilo has problems, they are few compared to mainland USA. I never experienced racism by  More

   |    Reply
Donald · Sequim, WA
Racist locals
Over 4 years ago

Too much racism from "native Hawaiians" who aren't actually natives. That keeps me from living in that paradise. I'm this is the "natives" goal.  More

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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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Learn More About Hilo, Hawaii
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Learn More About Mercer Island, Washington
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