Forks, also previously known as the unincorporated town of Quillayute, is a city in southwest Clallam County, Washington, United States. The po…Forks, also previously known as the unincorporated town of Quillayute, is a city in southwest Clallam County, Washington, United States. The population was 3,335 at the 2020 census. It is named after the forks in the nearby Bogachiel, Calawah, and Sol Duc rivers which join to form the Quillayute River.