2026 Compare Cities Health:
San Mateo, CA vs Castro Valley, CA

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Highlights
- There are 226 physicians per 100,000 people in Castro Valley.
- There are 302 physicians per 100,000 people in San Mateo.
- The US average is 210 physicians per 100,000 people.
 San Mateo, CACastro Valley, CAUnited States
 Air Quality (100=best)  Unlock63.158.4
 Water Quality (100=best)45  Unlock55
 Superfund Sites (100=best)  Unlock94.386.9
 Physicians per Cap.302  Unlock210
 Health Cost  Unlock104100
   (100 = best)
Reviews for San Mateo    12 Reviews

I have lived in San Mateo since 2013. It has seen tremendous growth, lots of new restaurants which have become progressively more high-end though there is ample  More

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I'm a native of California. I have lived in the southern part of the state and the northern part of the state for most of my life. I have spent the last 29 years in  More

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Over 16 years ago

San Mateo has a diverse mix of people, a pleasant climate, a very pleasant downtown park with lots going on, and pretty much whatever you need handy. It's not far to  More

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Reviews for Castro Valley    7 Reviews

CURMUDGEON - THANK YOU for your post. The most important part of your comment is your second paragraph. "Hodge-Podge" is the correct word for a lot of Castro  More

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Over 12 years ago

Kind of rural but close to Oakland and San  More

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Castro Valley is the largest unincorporated "city" in the Bay Area. Over the years, several attempts have been made to incorporate, but they have all been defeated at  More

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