Manchester is an unincorporated community and census-designated place (CDP) in Kitsap County, Washington, United States. The population was 5,714 at the 2020 census. Manchester is located on the Puget Sound approximately 10 miles from downtown Seattle, and is adjacent to county seat Port Orchard to its east. Today, Manchester labels itself as a village. It is small in size but is home to a Kitsap Regional Library (KRL) branch, a post office, an elementary school, and a beachfront park to serve its residents.