The Washington Post published some interesting maps concerning religion in the US. Below are some maps that show the various aspects of religion in the US. Not surprising you will see a lot of Latter Day Saints influence in Utah and it’s surrounding states and will notice how active they tend to be relative to some other areas of the country.
Most popular religion by county
Largest non christian religions by state
Total congregations, as a share of population – defined as regular group meetings per 10,000 people