Aerial view of Wright-Patterson Air Force Base in Bath Township, Greene County, Ohio, United States, northeast of the city of Dayton. Picture taken from a Diamond Eclipse light airplane at an altitude of 3,520 feet MSL and a bearing of approximately 70º. – Nyttend, Public domain – Wikimedia Commons Bath Township is located in Greene County. About 39,365 people live here (as of 2020). Between 2010 and 2020, the population declined from 39,392 to 39,365. The region is at 262 meters above sea level. The area covers about 98.0 square kilometers. There are about 1.529 streets in Bath Township. Bath Township is township in Greene County, Ohio, United States. Among other things, Bath Township has banks.