Southport is a census-designated place (CDP) in the town of Fairfield, Connecticut. It is located along Long Island Sound between Mill River and Sasco Brook, where it borders Westport. As of the 2020 census, it had a population of 1,710. Settled in 1639, Southport center has been designated a local historic district since 1967. In 1971, it was listed on the National Register of Historic Places as the Southport Historic District. History The indigenous village of Sasqua, inhabited by Quiripi language speakers, was located in the area. Members of that community later formed the Golden Hill Paugussett Indian Nation. The earliest recorded event in Southport's history was "The Great Swamp Fight" or "Fairfield Swamp Fight" of July 1637 (not to be confused with the later Great Swamp Fight of King Philip's War), an episode of the Pequot War in which English colonial forces led by John Mason and Roger Ludlow vanquished a band of 80 to 100 Pequot Indians who had earlier fled from their home territory in the Mystic area and taken refuge with approximately 200 Sasqua Indians who inhabited the area that is now Fairfield. The exact location of the battle is unclear, but it is known to have been in the vicinity of Southport. In 1639, Ludlow established the town of Fairfield on the Pequot land known as Unquowa. Colonial deeds of land were signed with the Sasqua in the 1670s. In the eighteenth century, Mill River village, a part of Fairfield, was a small hamlet of a few houses and a wharf at the mouth of Fairfield's Mill River. Farm products from the surrounding area were shipped from Mill River's small harbor to ports in New York and beyond. By 1831 the village had changed its name to Southport and was a bustling commercial area with warehouses, churches, schools, stores and elegant houses. Before 1853, Southport had its own local government as a borough within the town of Fairfield. Economic history Southport became a leading coastal port on Long Island Sound, its ships carrying produce and goods back and forth to New York City. A measure of Southport's success is the fact that throughout the 1800s it possessed the only two banks in town. However, competition from steamboats and the railroad took its toll on prosperity. Resourceful shippers teamed with local farmers and businessmen to keep the port going. The Southport Onion, a high quality onion,