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 1,677. Cosmopolis is currently growing at a rate of 0.42% annually and its population has increased by 2.63% since the most recent census, which recorded a population of 1,634 in 2020.

The median household income in Cosmopolis is $84,853 with a poverty rate of 10.28%. The median age in Cosmopolis is 39.2 years: 37.4 years for males, and 39.4 years for females. For every 100 females there are 115.5 males.

1.7K
Total Population
1,205
Density (mi²)
7 0.42%
Growth

Cosmopolis Population

Cosmopolis Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,67770.42%
20251,67070.42%
20241,66350.3%
20231,658-1-0.06%
20221,659-2-0.12%
20211,661271.65%
20201,63440.25%
20191,658261.59%
20181,632251.56%
20171,607161.01%
20161,59180.51%
20151,58330.19%
20141,580-11-0.69%
20131,591-21-1.3%
20121,612-15-0.92%
20111,627-22-1.33%
20101,64200%

Median Age

Overall: 39.2 years
Female: 39.4 years
Male: 37.4 years

Cosmopolis Adults

There are 1,574 adults, (350 of whom are seniors) in Cosmopolis.

Sex Ratio

Female: 1,022 (46.4%)
Male: 1,180 (53.6%)

Demographics

The racial composition of Cosmopolis includes 85.6% White, 4.09% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,88585.6%
Two or more races2149.72%
Asian904.09%
Native American130.59%
Race
Population ↓
Percentage (of total)
Two or more races1597.22%
White492.23%
Race
Population ↓
Percentage (of total)
White1,83683.38%
Asian904.09%
Two or more races552.5%
Native American130.59%

Cosmopolis Marital Status

Economics and Income Statistics

Cosmopolis ' average per capita income is $55,063. Household income levels show a median of $84,853. The poverty rate stands at 10.28%.

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$106,339-
Families$105,125$109,409
Households$84,853$95,046
Non Families$38,750$58,249

$55,063

Average Income

$84,853

Median Household Income

10.28%

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)