The village of Chickasaw is located in northern Marion Township, and the unincorporated communities of Cassella, St. Rose, Maria Stein, and Sebastian lie in the western, central, and northwestern portions of the township respectively.
Chickasaw, a village located in northern Marion Township, shares its borders with several unincorporated communities: Cassella in the west, St. Rose in the center, Maria Stein in the northwest, and Sebastian in the northwest.