These numbers seem about what I would have expected just from my knowledge of total global population numbers for each religion.
The one real outlier is Judaism, which doesn't fit that particular pattern, but this deviation is explained by having a bit of foreknowledge about American Jews, the nature of the Jewish Diaspora, and New England.
Islam and Buddhism are right where I'd expect them, with immigrants from Asia typically settling on the West coast and immigrants from the Middle East typically settling on the East coast. There's also the factor of Islamic influences from the African heritage in the Southeast. The one deviation I really can't intuit the reason for is the spread of Islam so far into the Northern Rockies, but it might simply be that they get second place by default, given how sparsely populated the region is in general.