Stratford is a town in Fairfield County, Connecticut, United States, located on Long Island Sound at the mouth of the Housatonic River. It was founded by Puritans in 1639. The population was 51,384 as of the 2010 census. It has a historical legacy in aviation, the military, and theater. Stratford is bordered on the west by Bridgeport, to the north by Trumbull and Shelton, and on the east by Milford.