Front of Rootstown High School in Rootstown, Ohio, United States. – JonRidinger, CC BY-SA 4.0 – Wikimedia Commons Rootstown Township is located in Portage County. About 8,602 people live here (as of 2020). Between 2010 and 2020, the population grew from 8,225 to 8,602. The region is at 325 meters above sea level. There are about 273 streets in Rootstown Township. Rootstown Township is township in Portage County, Ohio, United States of America. Among other things, Rootstown Township has restaurants, supermarkets and banks. More information at www.rootstowntwp.com.