Miami Township is one of the twelve townships of Greene County, Ohio, United States. As of the 2010 census the township population was 4,790, 1,199 of whom lived in the unincorporated portion.GeographyLocated in the northern part of the county, it borders the following townships: Green Township, Clark County - northeastCedarville Township - southeastXenia Township - southwestBath Township - westMad River Township, Clark County - northwest Two villages are located in Miami Township: part of Clifton in the northeast, and Yellow Springs in the center.Name and historyMiami Township was established in 1808 from land given by Bath and Xenia townships. It takes its name from the Little Miami River.Statewide, other Miami Townships are located in Clermont, Hamilton, Logan, and Montgomery Counties.