2025 Compare Cities People:
Williamstown, NJ vs King of Prussia, PA

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Highlights
- King of Prussia is 0% more densely populated than Williamstown.
- People are 6.1% more likely to be married in King of Prussia.
- The Median Age is 3.9 years younger in King of Prussia.
 Williamstown, NJKing of Prussia, PAUnited States
 Population  Unlock23,841329,725,481
 Female Population53.1%  Unlock50.5%
 Male Population46.9%  Unlock49.5%
 Median Age  Unlock36.938.4
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 Population - 201014,232  Unlock309,327,143
 Population - 2000  Unlock18,511285,036,114
 Population - 199010,891  Unlock251,960,433
 Pop. 2000 to Now  Unlock10.5%15.6%
 Pop. 1990 to Now40.6%  Unlock30.8%
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 Population Density  Unlock2,809.593.4
 Land Area7.4  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
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 Est. Total Population By Age
 Williamstown, NJKing of Prussia, PAUnited States
 Age 0 to 44.4%  Unlock5.9%
 Age 5 to 9  Unlock5.2%6.1%
 Age 10 to 145.9%  Unlock6.6%
 Age 15 to 17  Unlock2.0%3.9%
 Age 18 to 202.6%  Unlock4.0%
 Age 21 to 24  Unlock4.8%5.2%
 Age 25 to 3411.7%  Unlock13.8%
 Age 35 to 44  Unlock12.5%12.9%
 Age 45 to 5414.6%  Unlock12.6%
 Age 55 to 59  Unlock7.4%6.7%
 Age 60 to 646.8%  Unlock6.3%
 Age 65 to 74  Unlock8.8%9.6%
 Age 75 to 843.9%  Unlock4.5%
 Age 85 and over  Unlock2.3%1.9%
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 Race
 Williamstown, NJKing of Prussia, PAUnited States
 White78.5%  Unlock59.4%
 Black  Unlock6.7%12.2%
 Asian1.4%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.7%0.4%
 Two or More Races4.7%  Unlock3.2%
 Hispanic  Unlock3.4%18.4%
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 Marriage & Family
 Williamstown, NJKing of Prussia, PAUnited States
 Married Population51.3%  Unlock49.8%
     Currently Married  Unlock53.3%48.0%
 Married but Separated1.1%  Unlock1.8%
 Single Population  Unlock45.6%50.2%
 Never Married29.6%  Unlock33.8%
 Divorced  Unlock7.0%10.8%
 Widowed7.5%  Unlock5.6%
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 Household Size  Unlock2.252.60
 Households5,661  Unlock124,010,992
 Family Households  Unlock5,90780,755,759
     Married couple, w/children37.1%  Unlock30.5%
     Married couple, no children  Unlock49.0%42.9%
 Non Family Households1,858  Unlock43,255,233
     Single householder, w/children  Unlock6.7%15.8%
     Single householder, no children10.5%  Unlock10.8%
Reviews for Williamstown    4 Reviews

I’ve lived in Williamstown for 38 yrs. It used to be quiet, rural and a place where everyone knew just about everyone. But like everywhere else, it’s getting overgrown,  More

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Over 12 years ago

Family has lived in Williamstown since 1986 and property taxes have increased dramatically. Weather is pretty decent, lots of restaurants in the general area. Good  More

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Over 17 years ago

$13,000!!!! My parents have a house, no inground pool, the only thing other than the house is the driveway and shed, not even a quarter of an acre.. and their property  More

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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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