Hudson is a town in Hillsborough County, New Hampshire, United States. The population was 24,467 at the 2010 census.United States Census Bureau, American FactFinder, 2010 Census figures. Retrieved March 23, 2011.The primary settlement in town, where 7,336 people resided at the 2010 census, is defined as the Hudson census-designated place (CDP) and is located at the junctions of New Hampshire routes 102, 111 and 3A, directly across the Merrimack River from the city of Nashua.

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