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Old Posted Jul 19, 2010, 10:02 PM
Mad_Nick Mad_Nick is offline
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Join Date: Oct 2003
Posts: 1,654
What is your methodology here? Is any metropolitan area within a 150 miles of the center of the main metropolitan area is included, or does the entire other metro area have to be within a 150 mile radius?

I did something similar years ago and posted here, but I think it's been purged long ago.
I wrote a small program to calculate the population within a certain radius of a certain census tract using census area data. I'll see if the code is still somewhere on my harddrive.

EDIT: Ah, found it! I still have the code and my compilation of 2000 census area tract, so if anyone's interested just say so and I can post more results (and the code(C++)+data).

I'll just post the 200km radius (so approximately 125 miles) for NYC, LA, Chicago and Philadelphia.

New York
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Population: 31599054
Land Area: 80386.9 sq km
Population Density: 393.087 people / sq km

Chicago
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Population: 15213265
Land Area: 98752.3 sq km
Population Density: 154.055 people / sq km

Los Angeles
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Population: 19882968
Land Area: 72211.6 sq km
Population Density: 275.343 people / sq km

Philadelphia
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Population: 33775290
Land Area: 86016.9 sq km
Population Density: 392.659 people / sq km

Last edited by Mad_Nick; Jul 19, 2010 at 10:31 PM.
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