2025 Compare Cities Religion:
Castaic, CA vs Boulder, CO

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Highlights
- People living in Boulder are 11.3% less likely to have a religous affiliation, than people living in Castaic
 Castaic, CABoulder, COUnited States
 Percent Religious  Unlock42.1%49.4%
 Baptist2.0%  Unlock8.2%
 Episcopalian  Unlock1.1%0.6%
 Catholic37.0%  Unlock19.7%
 Church of Jesus Christ  Unlock3.0%2.1%
 Lutheran0.5%  Unlock2.4%
 Pentecostal  Unlock0.5%1.9%
 Methodist1.2%  Unlock4.0%
 Presbyterian  Unlock2.1%1.7%
 Other Christian5.2%  Unlock6.7%
 Judaism  Unlock0.8%0.7%
 Eastern1.1%  Unlock0.5%
 Islam  Unlock0.1%0.9%
Reviews for Castaic    3 Reviews

Over 9 years ago

I've lived in northern Castaic for 14 years so this review is for northern Castaic Pros: convenient freeway access, boating on Lake Castaic, lots of gas stations,  More

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Over 11 years ago

Formerly a "truck stop" town, Castaic is the last town before going over the Grapevine, heading North on I-5 towards San Francisco. The town is unincorporated and sits  More

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Over 12 years ago

I currently live in Valencia. Before I consider purchasing a house in Castaic off Lake Hughes Rd and closer to the lake, is it safe to live in this neighborhood? Any  More

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Reviews for Boulder    55 Reviews

Outside of the university, Boulder had a very distinctive "wealthy hippy" feel. A lot of alternative medicine and a matching ethos. This is changing some among my  More

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We moved here from Texas about 4 years ago and love it here! The amazing sense of community and high regard for the environment are two of the main reasons we love  More

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Over 5 years ago

Most people do much worse than Boulder. I'm the most critical person I've ever met who is never happy or satisfied -- so that's a pretty huge compliment.   More

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