Plum Valley is an unincorporated community and census-designated place (CDP) in Will County, Illinois, United States.

Plum Creek flows from southwest to northeast through the center of the CDP.

Plum Valley was first listed as a CDP prior to the 2020 census.

Plum Valley first appeared as a census designated place in the 2020 U.S.

This Will County, Illinois location article is a stub.