Grays Harbor County, Washington
County seat: Montesano · Population 78,144 (2025) · 1,902 sq mi
Grays Harbor County is the 19th most populous of Washington's 39 counties, with 78,144 people (2025 estimate). Its county seat is Montesano. The map shows its 9 cities and towns and the 5 neighboring counties.
Grays Harbor County facts
- County seat
- Montesano
- Population (2025 estimate)
- 78,144 +3.3% since 2020
- Land area
- 1,902 sq mi 15th largest of 39
- Water area
- 321 sq mi
- Population density
- 41 per sq mi
- Established
- 1854
- Named after
- Grays Harbor estuary and bay of the Pacific Ocean in Grays Harbor County, Washington, United States of America
- Largest city
- Aberdeen 17,088
- Median household income
- $64,414
- Cities and towns
- 9 plus 23 CDPs
- ZIP codes
- 22
- Time zone
- Pacific
- FIPS code
- 53027
Cities and towns in Grays Harbor County
Grays Harbor County has 9 incorporated cities, towns and villages. Populations count the people living inside Grays Harbor County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Aberdeen | City | 17,088 | |
| Hoquiam | City | 8,710 | |
| Ocean Shores | City | 7,892 | |
| Montesano (county seat) | City | 4,181 | |
| Elma | City | 3,534 | |
| Westport | City | 2,372 | |
| McCleary | City | 2,053 | |
| Cosmopolis | City | 1,656 | |
| Oakville | City | 734 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Central Park | 3,206 | |
| Taholah | 833 | |
| Brady | 832 | |
| Satsop | 780 | |
| Grayland | 708 | |
| Copalis Beach | 671 | |
| Malone | 518 | |
| Cohassett Beach | 455 | |
| Aberdeen Gardens | 309 | |
| Neilton | 299 | |
| Ocosta | 235 | |
| Ocean City | 187 | |
| Markham | 166 | |
| Porter | 155 | |
| Humptulips | 140 | |
| Qui-nai-elt Village | 134 | |
| Oyehut | 111 | |
| Santiago | 96 | |
| Amanda Park | 86 | |
| Moclips | 82 | |
| Hogans Corner | 8 | |
| Pacific Beach | 0 | |
| Queets | 0 | Jefferson County |
ZIP codes in Grays Harbor County
22 ZIP codes reach into Grays Harbor County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 98520
- 98526
- 98535
- 98536
- 98537 also Pacific County
- 98541 also Mason County
- 98547 also Pacific County
- 98550
- 98552
- 98557 also Mason County
- 98559
- 98562
- 98563 also Mason County
- 98566
- 98568 also Lewis and Thurston counties
- 98569
- 98571
- 98575
- 98579 also Thurston and Lewis counties
- 98583
- 98587
- 98595
Population of Grays Harbor County, 2020–2025
Grays Harbor County grew by 2,509 people (+3.3%) between April 2020 and July 2025: 2,050 more deaths than births and a net gain of 4,613 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 75,866 |
| 2021 | 76,889 |
| 2022 | 77,108 |
| 2023 | 77,582 |
| 2024 | 78,020 |
| 2025 | 78,144 |
Neighboring counties
- Jefferson County north · 33,970 people
- Mason County northeast · 71,165 people
- Pacific County south · 24,357 people
- Thurston County east · 304,261 people
- Lewis County southeast · 88,062 people
Printable Grays Harbor County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (115 KB)
- PNG (2400 px) (89 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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