Washington is a rural town in Litchfield County, Connecticut, in the North Eastern region of the United States. The population was 3,646 at the 2020 census. Washington is known for its picturesque countryside, historic architecture, and active civic and cultural life. The town has strong ties to New York City, and is home to many cultural and business elites. Th…Washington is a rural town in Litchfield County, Connecticut, in the North Eastern region of the United States. The population was 3,646 at the 2020 census. Washington is known for its picturesque countryside, historic architecture, and active civic and cultural life. The town has strong ties to New York City, and is home to many cultural and business elites. The town is part of the Northwest Hills Planning Region.