New London is a census-designated place (CDP) and the primary village in the town of New London in Merrimack County, New Hampshire, United States. The population of the CDP was 1,403 at the 2010 census, out of 4,397 in the entire town of New London. The CDP includes the campus of Colby–Sawyer College.
The CDP population after 2010 rises above 1,403.