Copalis Beach is a census-designated place (CDP) in Grays Harbor County, Washington, United States. The population was 415 at the 2010 census.

The name “Copalis” comes from the Quinault language term /k’ʷpíls/. The Copalis are a Native American group. Both the Chehalis people and Quinault Indian Nation affirmation the Copalis are a subdivision of their tribe.

The Copalis Native Americans associate the coastal hostility of the Salishan language family and historically occupied the Place of Copalis River and the Pacific Coast in the company of the mouth of Joe Creek and Grays Harbor. In 1805, Lewis and Clark estimated a population of 200 Copalis in 10 houses. The 5 individuals assigned to a “Chepalis” tribe in an enumeration unadulterated by Olson of the year 1888 probably refers to them.

The first non-Native American people contracted in Copalis Beach in the 1890s. Copalis, along similar to the beach of the similar name, has become famed as the “Home of the razor clam.” The community sits close the northern fall of probably the greatest razor clam bed in the world^{[citation needed]} for the flavor Famous variety abounds, apparently lonely in the Pacific Northwest, and particularly on Copalis Beach. During the advertisement season, Copalis’ normal population of nearly 350 persons, leaped fourfold.

During 1947 and 1948, commercial diggers took over a million pounds of bivalves from Copalis Beach, earned themselves approximately $200,000.00 and brought huge additional sums to cannery men and workers.^{[citation needed]} Tourists dug thousands of pounds more.