In 2000, Gallup measured the percentage of the U.S. adult population self-identifying as Catholic at 25%. In 2022 (the most recent figure currently available), this share measured 23%. If you are skeptical of Gallup, the General Social Survey (GSS) in 2022 also measured the adult Catholic population at 23%. The overall U.S. population has grown since 2000 so self-identified Catholics have as well (by 8.5%), even with a smaller overall percentage share.
