Well, I went to Seattle a few years ago (2005), and I saw plenty of churches.
Sure, but we go to them less often than any other region in America -- a statistic I've heard a few times living here. Relative to say, England or Scandinavia, we're raving religious fanatics. Relative to Texas or Utah, we're unwashed heathens.

People who are anti-D&D for religious reasons are about as likely here as PETA-member vegans in Waco, Texas -- I have no doubt some exist, but it's about the last place you'd look for 'em.