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, Black or African American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Asian

Native American

Black or African American

Native Hawaiian or Pacific Islander

Other 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%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

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