1% of U.S. adults identify as Presbyterians in the mainline tradition.

21% of this group lives in the Midwest, 27% live in the Northeast, 34% live in the South and 19% live in the West.

9% are between the ages of 18 and 29, 18% are ages 30 to 49, 28% are ages 50 to 65 and 44% are 65 and older.