Question: According to the 2010 census, what was the population of the town in which Glendale, New Hampshire is an unincorporated communmity?
Sentence (from "Antrim, New Hampshire"): The primary settlement in the town, where 1,397 people resided at the 2010 census, is defined as the Antrim census-designated place (CDP) and is located at the intersection of U.S. Route 202 and New Hampshire Route 31.
Relevant evidence: No