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2025 Compare Cities People:
San Dimas, CA vs Castle Rock, CO

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Highlights
- Castle Rock is 0% more densely populated than San Dimas.
- People are 17.5% more likely to be married in Castle Rock.
- The Median Age is 6.9 years younger in Castle Rock.
 San Dimas, CACastle Rock, COUnited States
 Population  Unlock71,037329,725,481
 Female Population53.1%  Unlock50.5%
 Male Population46.9%  Unlock49.5%
 Median Age  Unlock35.738.4
 space3
 Population - 201033,369  Unlock309,327,143
 Population - 2000  Unlock20,224285,036,114
 Population - 199032,397  Unlock251,960,433
 Pop. 2000 to Now  Unlock248.9%15.6%
 Pop. 1990 to Now2.4%  Unlock30.8%
 space4
 Population Density  Unlock2,073.293.4
 Land Area15.0  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 San Dimas, CACastle Rock, COUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock8.2%6.1%
 Age 10 to 146.3%  Unlock6.6%
 Age 15 to 17  Unlock5.3%3.9%
 Age 18 to 204.2%  Unlock4.0%
 Age 21 to 24  Unlock3.6%5.2%
 Age 25 to 3412.5%  Unlock13.8%
 Age 35 to 44  Unlock16.2%12.9%
 Age 45 to 5414.4%  Unlock12.6%
 Age 55 to 59  Unlock6.1%6.7%
 Age 60 to 647.2%  Unlock6.3%
 Age 65 to 74  Unlock6.1%9.6%
 Age 75 to 845.6%  Unlock4.5%
 Age 85 and over  Unlock1.0%1.9%
 space1
 Race
 San Dimas, CACastle Rock, COUnited States
 White41.8%  Unlock59.4%
 Black  Unlock0.5%12.2%
 Asian16.1%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races4.3%  Unlock3.2%
 Hispanic  Unlock11.0%18.4%
 space2
 Marriage & Family
 San Dimas, CACastle Rock, COUnited States
 Married Population53.2%  Unlock49.8%
     Currently Married  Unlock61.8%48.0%
 Married but Separated1.0%  Unlock1.8%
 Single Population  Unlock37.5%50.2%
 Never Married29.0%  Unlock33.8%
 Divorced  Unlock10.0%10.8%
 Widowed6.8%  Unlock5.6%
 space5
 Household Size  Unlock2.832.60
 Households11,812  Unlock124,010,992
 Family Households  Unlock19,11280,755,759
     Married couple, w/children30.7%  Unlock30.5%
     Married couple, no children  Unlock37.4%42.9%
 Non Family Households3,028  Unlock43,255,233
     Single householder, w/children  Unlock8.6%15.8%
     Single householder, no children14.7%  Unlock10.8%
Voting
Reviews for San Dimas    7 Reviews
JJ · Seattle, WA
San Dimas OG
Over 6 years ago

The Jefferson's have Guts & we love our city even from a distance it's still close to our hearts! Peace, Love, & Light!  More

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James · San Dimas, CA
The Drought
Over 11 years ago

You probably are aware of how bad the drought is in Southern CA. Last year we only received 3 inches of rain. This is more like Texas than Southern CA. It looks like  More

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Lawrence · Ogden, UT
The gem of San Dimas
Over 12 years ago

Lori I'm assuming you could not afford the VIA VERDE neighborhood of San Dimas. I just moved into VIA VERDE and it is so peaceful! I love it! I have a beautiful green  More

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Reviews for Castle Rock    12 Reviews
Jerry · Castle Pines North, CO
Beautiful Town but Not the Best for Young Adults
Over 5 years ago

My fiance and I moved here in 2018 shortly after finishing college. I work in Colorado Springs and she works in the Denver area, so Castle Rock was practically our only  More

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Ben · Castle Rock, CO
The Unforgettable Sunset
Over 7 years ago

I have always been mobile for my career, until I moved to Castle Rock. I've lived in in multiple cities in the Midwest including Chicago and have visited nearly every  More

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charlie · Castle Rock, CO
mountains of enjoyment
Over 11 years ago

we have four seasons, and the rockies are only two hrs.away. so for the outdoors enthusist sking or hiking is like no other place you have been or seen it is hard to  More

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Learn More About San Dimas, California
Overview
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Learn More About Castle Rock, Colorado
Overview
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