Edwardsville is an unincorporated community in Warren County, in the U.S. state of Ohio.
[1] Edwardsville is the oldest community in Harlan Township.
[2] Edwardsville was laid out in 1824 by Edward Thomas, and named for him.
[3] A post office called Edwardsville was established in 1825, and remained in operation until 1901.
This Warren County, Ohio state location article is a stub.