ZIP Codes of Grays Harbor County, WA

Population & People
Population & People
Total Population
79,574
Household Income
Household Income
Median Income
$66,193
Housing
Housing
Total Housing Units
38,690
Business & Economy
Business & Economy
Total Businesses
1,579
Employment
Employment
Employment Rate
46.30%
Education
Education
Bachelor's Degree+
18.12%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 21 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:21 ZIP Codes (15 Standard, 6 PO Box, 0 Unique) [See All]
Area Codes:360 / 564
Timezone:Pacific (GMT -08:00)
Local Time:2:14:16 PM
Population:79,574 [See All]
FIPS:53027
CBSA:Aberdeen, WA
Land Area:2,133 sq mi
Water Area:131 sq mi
Coordinates:47.1274, -123.8308
Quick Link:
https://www.zip-codes.com/county/wa-grays-harbor.asp
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Wide geographic spread
ZIPs range from 432.5 sq mi down to 5.21 — a 83× sprawl ratio.

Standout ZIPs in this County


Most Populous
Aberdeen · 24,888 people
31.3% of county total
Highest Income
Copalis Beach · $92,544 median
1.4× county average
Largest Land Area
Montesano · 432.5 sq mi
Spans the most ground
Fastest Growth
Cosmopolis · 31.6% (10-yr)
2,143 → 2,820 residents
Most Educated
Cosmopolis · 27.4% bachelor's+
517 of 1,886 adults 25+

Things worth knowing about Grays Harbor County


79,574 residents live across 21 ZIPs covering 2,133 sq mi, served by 21 distinct USPS-recognized cities.

Population moved from 74,371 to 79,275 from 2014 to 2024 — a +6.6% change. 10 ZIPs gained residents, 10 lost.

The county's wealthiest ZIP 98535 (Copalis Beach, $92,544 median) and poorest ZIP 98547 (Grayland, $42,400) are 22.0 miles apart — a 2.2× income gap across local geography.

Median home values vary 3.8× across this county — from $112,300 in 98587 (Taholah) to $426,200 in 98568 (Oakville).

Density varies 32× across the county — from 16 people/sq mi in 98587 (Taholah) to 518 in 98595 (Westport).

Educational attainment ranges from 8.0% bachelor's+ in 98587 (Taholah) to 27.4% in 98537 (Cosmopolis) — the breadth of educational profiles across the area.

Within Washington, this is the #18 most populous of 39 counties and ranks #32 for median household income with the #30 fastest decade growth .

Weighted by population, the typical household earns about $66,153 across the county — reflecting what a typical resident sees, not a simple ZIP average.

18.1% of adults age 25+ hold a bachelor's degree or higher (10,583 of 58,415 reporting).

15 Standard delivery, 6 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Grays Harbor County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
2,133
square miles
Avg density
37.3
people per sq mi
Population
79,574
across 21 ZIPs
Montesano
432.5 sq mi
7,604 residents
Aberdeen
276.4 sq mi
24,888 residents
Hoquiam
210.0 sq mi
12,316 residents

All ZIP Codes in Grays Harbor County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
98520AberdeenStandard24,888$58,153276.44.5%
98550HoquiamStandard12,316$55,040210.08.9%
98541ElmaStandard10,810$78,816195.26.2%
98563MontesanoStandard7,604$84,634432.5-8.6%
98569Ocean ShoresStandard7,489$58,37815.526.4%
98557McclearyStandard4,079$78,59435.930.0%
98568OakvilleStandard3,050$84,531175.39.6%
98537CosmopolisStandard2,820$79,459154.631.6%
98595WestportStandard2,698$66,5795.29.1%
98547GraylandStandard1,080$42,40057.5-0.6%
98587TaholahPO Box1,072$51,45866.419.6%
98535Copalis BeachStandard726$92,54421.757.5%
98566NeiltonPO Box299$58,2691.3
98526Amanda ParkStandard180$58,162188.4-35.0%
98552HumptulipsStandard140$47,39686.6-77.6%
98575QuinaultStandard113$68,125128.8-26.1%
98583SatsopPO Box79$62,7500.0-22.5%
98536Copalis CrossingStandard4973.2-71.0%
98571Pacific BeachPO Box485.3-83.6%
98562MoclipsPO Box343.4-53.4%
98559MalonePO Box00.0-100.0%

Adjacent & Nearby Counties