Pleasant Mills is an unincorporated community in St. Marys Township, Adams County, in the U.S. state of Indiana.

[1] A post office was established at Pleasant Mills in 1850.

[3] Edward G. Coxen was named the Pleasant Mills Postmaster on January 16, 1850.

[4] Pleasant Mills appeared as a separately-returned community in the U.S. Census twice, both times in the nineteenth century.

This Adams County, Indiana location article is a stub.