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Zip Code 98537 — Cosmopolis, WA

98537 is a ZIP Code associated with Cosmopolis, WA, located within Grays Harbor. The postal region supports an estimated population of 2,820 residents across Data Pending housing units, with a population density of 6.7 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (46.817190, -123.597680)

Data Metric	Local Statistic
Postal / Zip Code	98537
Primary City	Cosmopolis
State / Province	WA
County	Grays Harbor
Total Population	2,820
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	6.7 people/sq mi
Timezone	America/Los_Angeles

How 98537 Compares

Metric	ZIP 98537	Grays Harbor County	WA State Average
Population	2,820	78,494	7,816,021
Median Income	Data Pending	N/A	N/A
Population Density	6.7 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 98577	Raymond	12.1 mi	7,503	N/A
Zip 98583	Satsop	13.7 mi	79	N/A
Zip 98568	Oakville	14.3 mi	3,050	N/A
Zip 98520	Aberdeen	15.9 mi	24,888	N/A
Zip 98559	Malone	16.1 mi	N/A	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →