U.S. Map of Religions

This map of most common religious denomination by county from Mark Perry's blog is fascinating.

Only a smattering of counties have a majority of one religion/denomination (with clushers of Mormons in Utah and Idaho, Baptists in Texas in Mississippi, and Lutherans in North Dakota).

Looking at Central PA is interesting as well as we have plularilities of Mennonites in Lancaster County, Lutherans in York, Catholics in Dauphin, Cumberland and more, and Methodists in Perry, Franklin and others.