East Cathlamet is a census-designated place (CDP) in Wahkiakum County, Washington, on the eastern border of the town of Cathlamet. The population was 578 as of the 2020 census. The East Cathlamet community is part of the Wahkiakum School District, a K-12 school district of about 430 students. The name "Kathlamet" (Cathlamet) comes from the Kathlamet tribe, which in their language, means "rocky shore."
