The Washington Post brings us this fascinating map that shows the second-largest religion in each U.S. state (Christianity is the largest religion in every state). Islam is the second-largest religion in 20 states and Judaism is number 2 in 15 states, mostly in the Northeast. The article also includes a map of the second-largest religions by county, and a map of the largest religious denominations by county (including Christian denominations). The maps were produced by the Association of Statisticians of American Religious Bodies. We previously posted about similarly fascinating U.S. maps of the most commonly spoken languages other than English.