2025 Compare Cities People:
Castle Rock, CO vs Rancho Cucamonga, CA

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Highlights
- Rancho Cucamonga is 0% more densely populated than Castle Rock.
- People are 14.9% less likely to be married in Rancho Cucamonga.
- The Median Age is 1.2 years older in Rancho Cucamonga.
 Castle Rock, CORancho Cucamonga, CAUnited States
 Population  Unlock173,946329,725,481
 Female Population50.4%  Unlock50.5%
 Male Population49.6%  Unlock49.5%
 Median Age  Unlock36.938.4
 space3
 Population - 201048,793  Unlock309,327,143
 Population - 2000  Unlock127,743285,036,114
 Population - 19908,708  Unlock251,960,433
 Pop. 2000 to Now  Unlock40.0%15.6%
 Pop. 1990 to Now710.4%  Unlock30.8%
 space4
 Population Density  Unlock4,336.093.4
 Land Area34.3  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Castle Rock, CORancho Cucamonga, CAUnited States
 Age 0 to 47.4%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 147.2%  Unlock6.6%
 Age 15 to 17  Unlock3.8%3.9%
 Age 18 to 204.1%  Unlock4.0%
 Age 21 to 24  Unlock5.1%5.2%
 Age 25 to 3412.9%  Unlock13.8%
 Age 35 to 44  Unlock12.3%12.9%
 Age 45 to 5414.3%  Unlock12.6%
 Age 55 to 59  Unlock6.7%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock7.9%9.6%
 Age 75 to 843.0%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
 space1
 Race
 Castle Rock, CORancho Cucamonga, CAUnited States
 White81.6%  Unlock59.4%
 Black  Unlock9.2%12.2%
 Asian2.0%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock38.1%18.4%
 space2
 Marriage & Family
 Castle Rock, CORancho Cucamonga, CAUnited States
 Married Population62.5%  Unlock49.8%
     Currently Married  Unlock51.4%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock46.8%50.2%
 Never Married24.5%  Unlock33.8%
 Divorced  Unlock9.9%10.8%
 Widowed3.0%  Unlock5.6%
 space5
 Household Size  Unlock3.032.60
 Households24,867  Unlock124,010,992
 Family Households  Unlock43,21280,755,759
     Married couple, w/children48.9%  Unlock30.5%
     Married couple, no children  Unlock40.7%42.9%
 Non Family Households5,755  Unlock43,255,233
     Single householder, w/children  Unlock13.6%15.8%
     Single householder, no children5.1%  Unlock10.8%
Reviews for Castle Rock    12 Reviews

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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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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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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Reviews for Rancho Cucamonga    11 Reviews

I lived in rancho for a few years and I felt safe the city was clean every thing was at your finger tips Walmart target lots of fast foods  More

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Full of Republicans I hate the city I’m moving to Palm Springs the people here are ridiculous caring Trump flags making fun of me in the city a bunch of Lunitics.  More

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Over 12 years ago

Of all the homes or places of where I lived throughout my lifetime, I especially remember Rancho Cucamunga, CA. But this city's name when I was there was Alta Loma, and  More

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