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2026 Compare Cities Health:
Callahan, FL vs Mars, PA

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Highlights
- There are 132 physicians per 100,000 people in Mars.
- There are 91 physicians per 100,000 people in Callahan.
- The US average is 210 physicians per 100,000 people.
 Callahan, FLMars, PAUnited States
 Air Quality (100=best)  Unlock68.958.4
 Water Quality (100=best)40  Unlock55
 Superfund Sites (100=best)  Unlock82.486.9
 Physicians per Cap.91  Unlock210
 Health Cost  Unlock85100
   (100 = best)
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Reviews for Callahan    2 Reviews
Peyton · Fernandina Beach, FL
Bad Hill Billy Place
Over 5 years ago

I hate Callahan because of the  More

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fox · Ogden, UT
PROS and CONS of Nassau County
Over 14 years ago

Can someone elaborate the pros and cons of moving to Nassau county where I can buy 2+acres of land for under 20K? We are a military family and this will be our final  More

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Reviews for Mars    1 Reviews
Janet · Mars, PA
Not so small.
Over 17 years ago

It's a small town but growing. The scenery and weather are nice. The location is just about right. It's not far from Pittsburgh or other cities, towns and activities.  More

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Learn More About Callahan, Florida
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