Definitely these two, and probably at least the Dakotas as well.
Maybe, but the Dakotas are among the most religious states.
Which Christian denominations are prominent in the Dakotas? Religious nones in South Dakota voted for Billie Sutton by a landslide margin.
Oh, so they probably aren’t Republican.
Lutherans are the largest denomination, followed by Catholics. The Dakotas are about as Catholic as the national average, while they are the most Lutheran states. They may even be the most Mainline Protestant states.
Religious nones in South Dakota are probably heavily Democratic. Catholics are the largest denomination in California, which is the case in many urban states.