Trumbull is a town located in Fairfield County, Connecticut, United States. The town is part of the Greater Bridgeport Planning Region, and borders on the cities of Bridgeport and Shelton, as well as the towns of Stratford, Fairfield, Easton and Monroe. The population was 36,827 during the 2020 census. The Trumbull area was the home of the Golden Hill Paugussett Indian Nation for thousands of years before the English settlement was made in 1639.