High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Chagrin Falls Township is a township located in Cuyahoga County, Ohio, United States. As of the 2000 census, the township had a total population of 135. The unincorporated township consists of about 43 households on an area of 0.52 sq mi, resulting in a population density of 261.7 persons/mile² (101.0 persons/km²). It is one of only two civil townships remaining in Cuyahoga County and the only Chagrin Falls Township statewide.