Plymouth Regional High School includes students from a town in Grafton County, New Hampshire that had a population of 247 in what census year?
Waterville Valley, New Hampshire Waterville Valley is a town in Grafton County, New Hampshire, United States. The population was 247 at the 2010 census.
Plymouth Public Schools Plymouth Public Schools is a school district that serves Plymouth, Massachusetts. It operates 12 schools, making it one of the largest town school districts in the state.