2026 Compare Cities People:
Castle Rock, CO vs Ithaca, NY

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Highlights
- Ithaca is 0% more densely populated than Castle Rock.
- People are 68.1% less likely to be married in Ithaca.
- The Median Age is 13.4 years younger in Ithaca.
 Castle Rock, COIthaca, NYUnited States
 Population  Unlock31,819329,725,481
 Female Population50.4%  Unlock50.5%
 Male Population49.6%  Unlock49.5%
 Median Age  Unlock22.338.4
 space3
 Population - 201048,793  Unlock309,327,143
 Population - 2000  Unlock29,287285,036,114
 Population - 19908,708  Unlock251,960,433
 Pop. 2000 to Now  Unlock5.8%15.6%
 Pop. 1990 to Now710.4%  Unlock30.8%
 space4
 Population Density  Unlock5,904.493.4
 Land Area34.3  Unlock3,531,905.4
 Water Area  Unlock0.7264,836.8
 space
 Est. Total Population By Age
 Castle Rock, COIthaca, NYUnited States
 Age 0 to 47.4%  Unlock5.9%
 Age 5 to 9  Unlock1.9%6.1%
 Age 10 to 147.2%  Unlock6.6%
 Age 15 to 17  Unlock1.7%3.9%
 Age 18 to 204.1%  Unlock4.0%
 Age 21 to 24  Unlock23.4%5.2%
 Age 25 to 3412.9%  Unlock13.8%
 Age 35 to 44  Unlock9.4%12.9%
 Age 45 to 5414.3%  Unlock12.6%
 Age 55 to 59  Unlock3.4%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock3.7%9.6%
 Age 75 to 843.0%  Unlock4.5%
 Age 85 and over  Unlock1.3%1.9%
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 Race
 Castle Rock, COIthaca, NYUnited States
 White81.6%  Unlock59.4%
 Black  Unlock4.5%12.2%
 Asian2.0%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.9%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock8.4%18.4%
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 Marriage & Family
 Castle Rock, COIthaca, NYUnited States
 Married Population62.5%  Unlock49.8%
     Currently Married  Unlock19.0%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock80.0%50.2%
 Never Married24.5%  Unlock33.8%
 Divorced  Unlock4.2%10.8%
 Widowed3.0%  Unlock5.6%
 space5
 Household Size  Unlock1.932.60
 Households24,867  Unlock124,010,992
 Family Households  Unlock3,45180,755,759
     Married couple, w/children48.9%  Unlock30.5%
     Married couple, no children  Unlock44.5%42.9%
 Non Family Households5,755  Unlock43,255,233
     Single householder, w/children  Unlock16.7%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 8 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 12 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 Ithaca    32 Reviews

BILL · 

For a small city, its downtown has grown significantly and serves as the hub of the community. The Ithaca Commons remains the central gathering space for locals,  More

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Over 5 years ago

Great place to live. Lots to do, vibrant culture, and beautiful scenery. Don't fear the winter--it's even beautiful then. Only complaint is the housing market. Way  More

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I was born, raised, educated there (Ithaca High and Cornell). In my opinion, before leaving to pursue my career, it seemed like the most beautiful, clean, low crime,  More

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