Map of US Religious Affiliation by County

Map of US Religious Affiliation by County April 21, 2012

This is one of my favorite maps of religion. It was produced by Glemary research, and it shows the predominant religious affiliation in counties nationwide. It demonstrates the many historical patterns that shaped American religion. For example, you can see the westward path of the Methodist circuit riders (in green) plus the immigration of Northern Europeans to the Northern Midwest.


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