Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Johnson Township is one of the twelve townships of Champaign County, Ohio, United States. The 2000 census found 3,357 people in the township, 1,578 of whom lived in the unincorporated portions of the township. Part of the village of St. Paris is located in southern Johnson Township, and the unincorporated community of Millerstown lies in the township''s east. It is the only Johnson Township statewide, although there is a Johnston Township in Trumbull County.