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View Diary: Which swing state is the 'swingiest?' (99 comments)

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  •  The county/CD/ZIP code (0+ / 0-)

    problem is a big one for geographical summaries.

    None of those three match with each other exactly.  I think ZIP codes don't even match with census tracts (there are ZIP codes with no residents, for instance; some office buildings are so large that they have a ZIP code).

    Counties are used a lot, but have a huge problem in that their population varies enormously. Loving County, TX had 82 people in 2010; Los Angeles County had almost 10 million people.

    CDs, at least, are mostly about the same population, but are drawn in infamously odd ways.

    Census tracts are kind of small, and there is not a lot of data available on a tract level.

    Founder Math and Statistics Geeks . Statistics for progressives

    by plf515 on Wed Nov 23, 2011 at 04:12:46 AM PST

    [ Parent ]

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