Cosmopolis, WA

View of Cosmopolis, WA
Population
1,656
U.S. Census Population Estimates Program · 2025
Elevation
19 ft
USGS GNIS community points and 3DEP elevation · GNIS 2026-07-06; USGS 3DEP sampled 2026-07-23
Median Home Value
$317,000
U.S. Census American Community Survey 5-Year · 2024
Median Income
$84,853
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About Cosmopolis

Located along the Chehalis River just south of Aberdeen, Cosmopolis is a quiet Grays Harbor town of about 2,000 residents. Often called Cosi by locals, the city grew up around timber mills in the late 1800s and has since become a laid-back residential community. Most homes sit along quiet streets that climb into the surrounding wooded hills, offering a slower pace right next door to the region's commercial core.

Outdoor spaces are a big part of daily life here. Mill Creek Park is a favorite local spot with shady walking trails, a fishing pond, and tennis courts, while nearby Makarenko Park provides open sports fields and a community garden. Cosmopolis runs its own elementary school, with older students heading into Aberdeen for junior high and high school. Since the town is mostly residential, locals make the short drive across the river for groceries, healthcare, dining, and jobs.

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