West Decatur is an unincorporated community and census-designated place in Clearfield County, Pennsylvania, United States.

[1] It lies in the southeast corner of Boggs Township along Blue Ball Road just south of U.S. Route 322 between Wallaceton and Philipsburg.

[2] It was also known as Blue Ball, for the nearby blue ball clay deposits,[3] but the local post office received the name West Decatur.

[4] West Decatur lies along the old Philipsburg and Susquehanna Turnpike, which was part of a through route between Philadelphia and Erie, and is thus now called Old Erie Pike.

[5] Successor Conrail sold it to R.J. Corman Railroad/Pennsylvania Lines in 1996, but it has since been abandoned.