States · Washington · Grays Harbor County

Cosmopolis, Washington.

Typical home $323,998 (-1.4% in a year). Aberdeen, WA metro.

What it costs per month · Cosmopolis $1,701/mo

to buy the typical home at today's mortgage rate — +$855 (+101%) since Jan 2020.

What the home itself did
1 year
Down $4,585 -1%
$328,583$323,998 since Sep 2025
5 years
Up $6,169 +2%
$317,828$323,998 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$1,000 $2,000 $3,000 2002 2006 2010 2014 2018 2022 2026 Cosmopolis $1,701 Washington $3,084 United States $1,922
$1,000 $2,000 $3,000 2002 2010 2018 2026
  • Cosmopolis$1,701
  • Washington$3,084
  • United States$1,922

Typical home values in Cosmopolis, WA fell 1.4% over the past year — slower than the nation's +1.2%.

Living in Cosmopolis, Grays Harbor County, Washington

Cosmopolis is a city of 1,638 people in Grays Harbor County. Half its households earn more than $84,853 a year and half less, against $64,414 across Grays Harbor County; 10% of its people live below the poverty line. 83% of its homes are lived in by their owners and 17% are rented. Unemployment in Grays Harbor County was 5.4% in August 2026, and the county had 0.1% fewer jobs in 2025 than the year before. The most people in Grays Harbor County work in schools and health care, then shops.

People 1,638 in the 2020 census
Household income $84,853 the median, give or take $20,630 · Grays Harbor County: $64,414
Unemployment 5.4% Grays Harbor County, August 2026; 5.6% a year before
Homes 83% lived in by their owners; 17% rented

Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Cosmopolis is a small city on the Chehalis River in Grays Harbor County, with a small-town population. Nearly all homes are lived in by their owners, and household incomes run well above the county's, though some residents still live below the poverty line. Winters are cool and mild, summers stay comfortable and never turn hot, snow is rare, and the rain is heavy through much of the year.

Work. Residents work mostly in schools, hospitals and social care, in shops, in restaurants and hotels, and in government, and almost no one works from home. Across Grays Harbor County, the largest workplaces include Stafford Creek Corrections Center, Grays Harbor Community Hospital and the Aberdeen School District. Unemployment in the county is a little lower than a year ago, though the number of jobs has barely changed.

Things to do. The Chehalis River runs in or beside town, and Kurt Cobain Memorial Park is a park right there too. A short drive away are the Grays Harbor National Wildlife Refuge, a protected area, and the 7th Street Theatre, a place for live shows.

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  • 762households
  • 10%below the poverty line
  • 1%work from home

What people in Grays Harbor County work in

  • Schools, hospitals and social care21%
  • Shops (retail)11%
  • Restaurants, hotels and entertainment11%
  • Government11%
  • Manufacturing10%
  • Transport, warehouses and utilities6%

Employed residents by industry, from the Census survey. Grays Harbor County had 23,790 jobs in 2025, 0.1% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in December, 47° and 36°; warmest in August, 69° and 54° 30° 40° 50° 60° 70° J F M A M J J A 69° 54° S O N D 47° 36°
Average daily high and low for each month: coldest in December, 47° and 36°; warmest in August, 69° and 54° 30° 40° 50° 60° 70° J F M A M J J A 69° 54° S O N D 47° 36°

Coldest in December, with highs near 47° and lows near 36°; warmest in August, with highs near 69° and lows near 54°. About 85 inches of rain a year, and little or no snow.

Average daily high and low, 1991–2020, at the Aberdeen weather station, 3 miles away (NOAA).

Largest workplaces in Grays Harbor County

  1. Stafford Creek Corrections CenterCorrectional institutions638
  2. Grays Harbor Community HospitalGeneral hospital396FTE
  3. Aberdeen School DistrictSchool district388FTE
  4. WalmartWarehouse clubs and supercenters355
  5. Quinault Beach Resort & CasinoHotels, resort, with casinos322
  6. Rognlin'sCommercial building construction general contractors286
  7. Summit Pacific Medical CenterCritical access hospital265FTE
  8. Grays Harbor CollegeUniversity or college257

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 44 workplaces with 20 or more staff, 4,585 people in all across the county; Cosmopolis has one of its own. Hospitals come from their Medicare cost reports (CMS, 2023), school districts from the Common Core of Data (NCES, 2023–24) and colleges from IPEDS (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. Coastal floodingVery high
  2. EarthquakesVery high
  3. Ice stormsRelatively high
  4. Inland floodingRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Cosmopolis’ census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Grays Harbor County and the Aberdeen, WA metro.

Cosmopolis home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

$200,000 $400,000 $600,000 2018 2020 2022 2024 2026 Cosmopolis $323,998 Washington $587,533 United States $366,157
$200,000 $400,000 $600,000 2018 2022 2026
  • Cosmopolis$323,998
  • Washington$587,533
  • United States$366,157

When this market ran hot

Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.

JFMAMJJASOND
2026
2025
2024
2023
2022
2021
2020
2019
2018
falling flat warming hot overheating runaway

Market heat, inside the city limits

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

6 8 10 2026 Cosmopolis 10
6 8 10 2026
  • Cosmopolis10

Zip codes with a Cosmopolis address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Cosmopolis — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Cosmopolis