It does, a little bit. I think there’s one church service, seen from the outside, and some important grave—Harry’s parents? -- has a quotation from the New Testament on it. (“The last enemy to be defeated is death”, which of course plenty of not-at-all-religious people would have much sympathy with.) But yes, religion in the UK tends to be rather less conspicuous than in the US.
Church of England, surely.
As an American I can tell you confidently that the wizards and witches of magical Britain have one quality above all others: they are British.
This would explain why religion never comes up in canon.
It does, a little bit. I think there’s one church service, seen from the outside, and some important grave—Harry’s parents? -- has a quotation from the New Testament on it. (“The last enemy to be defeated is death”, which of course plenty of not-at-all-religious people would have much sympathy with.) But yes, religion in the UK tends to be rather less conspicuous than in the US.