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.
Rochester, New Hampshire Rochester is a city in Strafford County, New Hampshire, United States. As of the 2010 census, the city population was 29,752, and in 2016 the estimated population was 30,345. The city includes the villages of East Rochester and Gonic. Rochester is home to Skyhaven Airport and the annual Rochester Fair.