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

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Highlights
- There are 322 physicians per 100,000 people in Boulder.
- There are 211 physicians per 100,000 people in Castaic.
- The US average is 210 physicians per 100,000 people.
 Castaic, CABoulder, COUnited States
 Air Quality (100=best)  Unlock74.158.4
 Water Quality (100=best)52  Unlock55
 Superfund Sites (100=best)  Unlock87.786.9
 Physicians per Cap.211  Unlock210
 Health Cost  Unlock94100
   (100 = best)
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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