Chehalis (/ʃəˈheɪlɪs/ shə-HAY-lis) is a city in and the county seat of Lewis County, Washington. The population was 7,439 at the time of the 2020 census. Incorporated in 1883, Chehalis was primarily a logging and railroad town, with a shift towards farming in the mid-20th century. The city has bolstered its economy in the 21st century with a focus in manufacturing and warehousing. The city has several distinct historical areas and boasts 11 locations on the list of National Register of Historic Places, more than any other region in Lewis County.