From my experience, yes, though it’s admittedly less common than it was when I moved to the South (specifically, NC’s Triangle) 20 years ago. Back then, it would have taken more than one hand to count the times people approached me at random at Target or somewhere, to ask if I was a churchgoer and to invite me to attend theirs. And it was a fairly standard question to receive when meeting new people.
To be very clear, where we live isn’t hostile to non-Christians, but we have met a fair number of people who have a hard time understanding the concept of atheism. My kids have ever been told by classmates that they’re bound for hell, and holiday-time craft projects in their public school included explicitly Christian imagery (angels, mostly). But my kids also learned about Diwali and Ramadan, and they have the Jewish holidays off from school.