2025 Compare Cities People:
King of Prussia, PA vs Federal Way, WA

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Highlights
- Federal Way is 0% more densely populated than King of Prussia.
- People are 9.3% less likely to be married in Federal Way.
- The Median Age is 0.1 years older in Federal Way.
 King of Prussia, PAFederal Way, WAUnited States
 Population  Unlock99,792329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock3738.4
 space3
 Population - 201019,735  Unlock309,327,143
 Population - 2000  Unlock83,259285,036,114
 Population - 199018,406  Unlock251,960,433
 Pop. 2000 to Now  Unlock15.7%15.6%
 Pop. 1990 to Now11.1%  Unlock30.8%
 space4
 Population Density  Unlock4,490.793.4
 Land Area8.5  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
 space
 Est. Total Population By Age
 King of Prussia, PAFederal Way, WAUnited States
 Age 0 to 46.9%  Unlock5.9%
 Age 5 to 9  Unlock5.6%6.1%
 Age 10 to 144.1%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 201.3%  Unlock4.0%
 Age 21 to 24  Unlock5.2%5.2%
 Age 25 to 3422.4%  Unlock13.8%
 Age 35 to 44  Unlock13.4%12.9%
 Age 45 to 5411.6%  Unlock12.6%
 Age 55 to 59  Unlock6.7%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock8.5%9.6%
 Age 75 to 846.0%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
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 Race
 King of Prussia, PAFederal Way, WAUnited States
 White61.5%  Unlock59.4%
 Black  Unlock16.6%12.2%
 Asian25.0%  Unlock5.6%
 Native American  Unlock0.6%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races2.7%  Unlock3.2%
 Hispanic  Unlock16.9%18.4%
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 Marriage & Family
 King of Prussia, PAFederal Way, WAUnited States
 Married Population54.4%  Unlock49.8%
     Currently Married  Unlock47.5%48.0%
 Married but Separated1.1%  Unlock1.8%
 Single Population  Unlock50.6%50.2%
 Never Married33.5%  Unlock33.8%
 Divorced  Unlock10.7%10.8%
 Widowed5.1%  Unlock5.6%
 space5
 Household Size  Unlock2.752.60
 Households10,555  Unlock124,010,992
 Family Households  Unlock24,24980,755,759
     Married couple, w/children36.1%  Unlock30.5%
     Married couple, no children  Unlock38.8%42.9%
 Non Family Households4,648  Unlock43,255,233
     Single householder, w/children  Unlock18.1%15.8%
     Single householder, no children8.2%  Unlock10.8%
Reviews for King Of Prussia    4 Reviews

Over 15 years ago

No comment...just trying to be able to answer another person's  More

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Over 16 years ago

KOP is what is wrong with America. Taxes may be low now, but we will pay for it later. No sidewalks, drive everywhere, no personality, no community, no  More

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King of Prussia has the lowest taxes in the 5 county area. It is centrally located just 20 minutes from center City Philadelphia, a very good public transportation  More

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Reviews for Federal Way    14 Reviews

Over 6 years ago

A suburb of The Emerald City (Seattle, WA), Federal Way has become yet another go-to place for affluent travelers and transplants from states all over the nation. The  More

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I want to move my family to austin i havent bin there but we want some ware housing is affortable i have four boys age 6,3,2 and a baby of 2 months and ware theres jobs  More

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I have lived in Brooklyn NY, West Palm Beach & Port St Lucie, FL and now Federal Way, WA. While the cost of living here is higher than Florida, it is definitely lower  More

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