Montesano Flag

Montesano

County Seat:
Yes
Area (mi²):
10.903
State:
Washington

Montesano is a city located in Grays Harbor County, Washington. Montesano has a 2026 population of 4,194. It is also the county seat of Grays Harbor County. Montesano is currently declining at a rate of -0.07% annually but its population has increased by 0.87% since the most recent census, which recorded a population of 4,158 in 2020.

4.2K
Total Population
385
Density (mi²)
-3 -0.07%
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)