New London, Connecticut is a small city in the northeastern United States on Earth. Roughly halfway between New York City and Boston, Massachusetts, it was a major seaport on the east coast of North America.
Until World War III, New London was the home of the United States Coast Guard Academy. In the 23rd century, Starfleet Academy established its Advanced Engineering College on the grounds of the ancient service school, which eventually became the Starfleet Corps of Engineers Research Center.
Ben Bartholomew lived in New London during his junior year at Starfleet Academy, where he met Ingrid Andersen and her family. (Star Trek: Pendragon: "Children of the Burning Heart", "The Good Fight", A Stranger No More)
The home office of Vickers Shipbuilding Group, Ltd., was located in New London. (Starfleet Academy Student Handbook)