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 2025 population of 1,670 . Cosmopolis is currently growing at a rate of 0.42% annually and its population has increased by 2.2% since the most recent census, which recorded a population of 1,634 in 2020.

The average household income in Cosmopolis is $91,174 with a poverty rate of 6.31%. The median age in Cosmopolis is 40 years: 41.6 years for males, and 36.6 years for females. For every 100 females there are 100.4 males.

1.7K
Total Population
1,200
Density (mi²)
7 0.42%
Growth

Cosmopolis Population

Cosmopolis Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Cosmopolis includes 85.75% White, 5.3% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

White (85.75%)

Two or more races (8.43%)

Asian (5.3%)

Native American (0.52%)

Race
Population
Percentage (of total)
White1,97385.75%
Two or more races1948.43%
Asian1225.3%
Native American120.52%

Cosmopolis Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cosmopolis' average per capita income is $52,892. Household income levels show a median of $80,132. The poverty rate stands at 6.31%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$96,484-
Families$95,391$103,451
Households$80,132$91,174
Non Families$32,237$54,225

$52,892

Average Income

$80,132

Median Household Income

6.31%

Poverty Rate

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)