I read an analysis somewhere years ago by some “expert” that the reason the US is more religious than most of Europe is that religions here had to compete in the free market, and were more tailored to what people wanted. In Europe, religion was often a state sponsored enterprise, with most countries having established churches that did not have the same need to adapt to the needs of the people.
I’m not endorsing that view, just throwing it out there as one possible explanation.
Where I live (in Silicon Valley), religion isn’t a big deal. Sure, most people are believers, but I have no issues or problems with being a non-believer. Not sure you could get elected as an avowed atheist, but politicians around here don’t talk about religion very much.
Also, since we have a large East Asian and Indian population, we have lots of people who aren’t of the Abrahamic religious tradition.