Cosmopolis Flag

Cosmopolis

County Seat:
No
Area (mi²):
1.392
State:
Washington

Cosmopolis is a city located in Grays Harbor County, Washington. Cosmopolis has a 2026 population of 1,663. Cosmopolis is currently growing at a rate of 0.3% annually and its population has increased by 1.77% since the most recent census, which recorded a population of 1,634 in 2020.

1.7K
Total Population
1,195
Density (mi²)
5 0.3%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)