Grays River is an unincorporated rural village in Wahkiakum County, Washington, United States. Grays River stands on the north bank of the lower Grays River, which flows into the Columbia River estuary. The National Register of Historic Places-listed Grays River Covered Bridge crosses the Grays River in the community. It is the only such bridge still in use in Washington. A low-power repeater in the community rebroadcasts Oregon Public Broadcasting television programming. Another repeater rebroadcasts KBTC-TV, the PBS affiliate in Tacoma, Washington. The ZIP code for Grays River is 98621.