Cosmopolis

County:: Grays Harbor County
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 1,682. Cosmopolis is currently growing at a rate of 0.48% annually and its population has increased by 2.5% since the most recent census, which recorded a population of 1,641 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.

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

Race	Population	Percentage (of total)
White	1,973	85.75%
Two or more races	194	8.43%
Asian	122	5.3%
Native American	12	0.52%

Cosmopolis Marital Status

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