Cosmopolis, Washington

Cosmopolis, Washington
Interactive map of Cosmopolis, Washington
Coordinates: 46°57′15″N 123°46′21″W / 46.95417°N 123.77250°W / 46.95417; -123.77250
CountryUnited States
StateWashington
CountyGrays Harbor
Incorporated1891
Government
 • TypeMayor–council
 • MayorLinda Springer
Area
 • City
1.58 sq mi (4.09 km2)
 • Land1.39 sq mi (3.60 km2)
 • Water0.19 sq mi (0.49 km2)
Elevation
23 ft (7.0 m)
Population
 (2020)
 • City
1,638
 • Estimate 
(2022)
1,667
 • Density1,194.1/sq mi (461.05/km2)
 • Urban
26,603
 • Metro
77,038
Time zoneUTC-8 (Pacific (PST))
 • Summer (DST)UTC-7 (PDT)
ZIP code
98537
Area code360
FIPS code53-14870
GNIS feature ID2410238
Websitecosmopoliswa.gov

Cosmopolis is a city in Grays Harbor County, Washington, United States. The population was 1,638 at the 2020 census. It lies on the Chehalis River and U.S. Route 101, immediately southeast of Aberdeen. Cosmopolis historically had an economy that centered around its pulp mill, which closed in 2006.