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Cosmopolis city, Washington Demographics & Population 2026

As of 2026, Cosmopolis city, Washington has a total population of 2,301, the 297th largest city in Washington, with a median household income of $80,132, which is 16% lower than the state average. The poverty rate is 6.3%.

Key Takeaways

Cosmopolis city Quick Facts

Population 2,301
Median Household Income $80,132
Median Home Value $280,700
Poverty Rate 6.3%
Unemployment Rate 9.6%
Median Age 40.0 years
Homeownership Rate 80.6%
Affordability Ratio 3.5x
Bachelor's Degree or Higher 21.9%
High School Graduation Rate 91.7%
Diversity Index 33/100
Population 2,301 297th of 631
Median Income $80,132 average
Poverty Rate 6.3% 49% lower national
Median Home Value $280,700 bottom 30%

How Cosmopolis city Compares

Economy & Housing

Employment

9.6% Unemployment Rate State: 5.0% | National: 5.2%
59.1% Labor Force Participation

Housing Overview

Owner 80.6%
Renter 19.4%
Affordability Index Affordable
3.5x home value to income ratio

People & Demographics

Diversity Index

33out of 100
Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 55 | National average: 60

Education

Cosmopolis city Rankings in Washington

#297 Population of 631
#314 Median Income of 631
#378 Education of 631
#421 Home Value of 631

Cities Similar to Cosmopolis city

These cities in the same state have comparable population and economic profiles.

CityPopulationMedian IncomeHome ValueBachelor's+Poverty
McCleary city2,262$75,652$327,10017.0%9.6%
Walla Walla East CDP2,264$87,723$580,60031.0%2.1%
North Yelm CDP2,503$77,691$330,20010.9%1.0%
Castle Rock city2,298$65,272$301,00014.6%6.5%
Okanogan city2,477$73,273$238,50025.0%11.9%

Population Overview

Cosmopolis city is a small community located in Washington. The total population is 2,301. It ranks as the 297th most populous out of 631 cities and towns in Washington.

Age Demographics

The median age in Cosmopolis city is 40.0 years. This is 5% higher than the state median of 38.2 years. 10.2% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Cosmopolis city is $80,132. This is 16% lower than the state median of $94,952. Compared to the national median of $78,538, household income here is 2% higher. The poverty rate stands at 6.3%. This is 36% lower than the state poverty rate of 9.9%. The unemployment rate is 9.6%. This is 92% higher than the state rate of 5.0%. The median home value is $280,700. Housing costs are 46% lower than the state median of $519,800. The home-value-to-income ratio is 3.5x. 80.6% of occupied housing units are owner-occupied. This homeownership rate is 26% higher than the state average of 63.9%.

Race & Ethnicity

The largest racial or ethnic group in Cosmopolis city is White (non-Hispanic), making up 81.2% of the population. Hispanic or Latino residents account for 10.3%.

Education

21.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 44% lower than the state rate of 38.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.7%.

Data Sources & Methodology

All demographic data for Cosmopolis city, Washington is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Washington state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 631 Census-designated places in Washington. For official data, visit data.census.gov.

Free data download: Get all Washington city and county demographics as CSV. Download Cities CSV | Download Counties CSV

Frequently Asked Questions

What is the population of Cosmopolis city, Washington?

Cosmopolis city, Washington has a population of 2,301 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Cosmopolis city, WA?

The median household income in Cosmopolis city is $80,132, which is 2% higher the national median of $78,538.

What is the poverty rate in Cosmopolis city, WA?

The poverty rate in Cosmopolis city is 6.3%. This means approximately 143 residents live below the federal poverty line.

What is the racial makeup of Cosmopolis city, Washington?

Cosmopolis city's population is 81.2% White, 0.0% Black, 10.3% Hispanic/Latino, and 5.3% Asian.

What is the median home value in Cosmopolis city, WA?

The median home value in Cosmopolis city is $280,700. The home-value-to-income ratio is 3.5x.

How educated is Cosmopolis city, Washington?

21.9% of adults (25+) in Cosmopolis city hold a bachelor's degree or higher, and 6.4% hold a graduate or professional degree.