Grays Harbor County, Washington

Grays Harbor County, Washington
Grays Harbor County Courthouse
Location within the U.S. state of Washington
Coordinates: 47°09′N 123°50′W / 47.15°N 123.83°W / 47.15; -123.83
Country United States
State Washington
FoundedApril 14, 1854
Named afterGrays Harbor
SeatMontesano
Largest cityAberdeen
Area
 • Total
2,224 sq mi (5,760 km2)
 • Land1,902 sq mi (4,930 km2)
 • Water322 sq mi (830 km2)  14%
Population
 (2020)
 • Total
75,636
 • Estimate 
(2024)
77,893
 • Density38.3/sq mi (14.8/km2)
Time zoneUTC−8 (Pacific)
 • Summer (DST)UTC−7 (PDT)
Congressional district6th
Websitewww.co.grays-harbor.wa.us

Grays Harbor County is a county in the U.S. state of Washington. As of the 2020 census, the population was 75,636. Its county seat is Montesano, and its largest city is Aberdeen. Grays Harbor County is included in the Aberdeen Micropolitan Statistical Area.