Rose Township, Carroll County, Ohio sign at township house – Roseohioresident, CC BY-SA 3.0 – Wikimedia Commons Rose Township is located in Carroll County. About 1,444 people live here (as of 2020). Between 2010 and 2020, the population declined from 1,537 to 1,444. The region is at 303 meters above sea level. There are about 89 streets in Rose Township. The region was founded in 1818. The name originates from rose (common idea of a plant) Rose Township is township of Ohio. More information at rosetownshipohio.com.