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2025 Compare Cities People:
Keystone, CO vs Castle Pines, CO

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Highlights
- Castle Pines is 0% more densely populated than Keystone.
- People are 262.2% more likely to be married in Castle Pines.
- The Median Age is 9.2 years older in Castle Pines.
 Keystone, COCastle Pines, COUnited States
 Population  Unlock11,296329,725,481
 Female Population63.2%  Unlock50.5%
 Male Population36.8%  Unlock49.5%
 Median Age  Unlock43.238.4
 space3
 Population - 2010765  Unlock309,327,143
 Population - 2000  Unlock5,958285,036,114
 Population - 1990466  Unlock251,960,433
 Pop. 2000 to Now  Unlock95.8%15.6%
 Pop. 1990 to Now159.4%  Unlock30.8%
 space4
 Population Density  Unlock1,177.493.4
 Land Area41.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Keystone, COCastle Pines, COUnited States
 Age 0 to 40.0%  Unlock5.9%
 Age 5 to 9  Unlock5.9%6.1%
 Age 10 to 140.0%  Unlock6.6%
 Age 15 to 17  Unlock6.1%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock4.6%5.2%
 Age 25 to 3418.8%  Unlock13.8%
 Age 35 to 44  Unlock12.6%12.9%
 Age 45 to 5411.3%  Unlock12.6%
 Age 55 to 59  Unlock9.3%6.7%
 Age 60 to 642.9%  Unlock6.3%
 Age 65 to 74  Unlock8.9%9.6%
 Age 75 to 849.8%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
 space1
 Race
 Keystone, COCastle Pines, COUnited States
 White43.9%  Unlock59.4%
 Black  Unlock4.2%12.2%
 Asian0.0%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races7.0%  Unlock3.2%
 Hispanic  Unlock5.0%18.4%
 space2
 Marriage & Family
 Keystone, COCastle Pines, COUnited States
 Married Population18.2%  Unlock49.8%
     Currently Married  Unlock65.0%48.0%
 Married but Separated4.3%  Unlock1.8%
 Single Population  Unlock34.2%50.2%
 Never Married54.0%  Unlock33.8%
 Divorced  Unlock7.4%10.8%
 Widowed0.0%  Unlock5.6%
 space5
 Household Size  Unlock3.012.60
 Households327  Unlock124,010,992
 Family Households  Unlock3,26980,755,759
     Married couple, w/children0.0%  Unlock30.5%
     Married couple, no children  Unlock46.2%42.9%
 Non Family Households298  Unlock43,255,233
     Single householder, w/children  Unlock4.6%15.8%
     Single householder, no children0.0%  Unlock10.8%
Voting
Reviews for Keystone    1 Reviews
Joe · Lakewood, CO
Keystone - Nice Place to Visit, But....
Over 5 years ago

Overall, decent place to live, but be prepared to live side-by-side with "tourists" from around the U.S.--often from Texas and California. This means, except for a  More

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Reviews for Castle Pines    2 Reviews
David · Castle Rock, CO
Castle Pines Village
Over 14 years ago

Great place to  More

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Lori · Castle Rock, CO
The best weather in the US, maybe even in the worl
Over 16 years ago

The weather in this part of CO is absolutely wonderful. This is largely due to the altitude and lack of humidity. It can be 32 degrees and not feel cold. One day may  More

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Learn More About Keystone, Colorado
Overview
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Learn More About Castle Pines, Colorado
Overview
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