That was the subject of a recent survey by Pew Forum. Nearly 5,000 USA adults took part. It’s worth the read. Some of the results will both surprise you and confuse you. : )

 

www.pewforum.org/2018/04/25/when-americans-say-they-believe-in-god-what-do-they-mean/

 

(Thanks for pointing us to this, Justin!)