Stratford is a town in Fairfield County, Connecticut, United States. It is situated on Long Island Sound at the mouth of the Housatonic River. The town is part of the Greater Bridgeport Planning Region, and the Bridgeport–Stamford–Norwalk Metropolitan Statistical Area. It was settled by Puritans in 1639. The population was 52,355 as of the 2020 census. It is bordered on the west by Bridgeport, to the north by Trumbull and Shelton, and on the east by Milford.