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.
New London, New Hampshire New London is a town in Merrimack County, New Hampshire, United States. The population was 4,397 at the 2010 census.