Plymouth, Washington | |
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Unincorporated community | |
Plymouth, Washington with Columbia River in background.
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Coordinates: 45°56′04″N 119°21′01″W / 45.93444°N 119.35028°WCoordinates: 45°56′04″N 119°21′01″W / 45.93444°N 119.35028°W | |
Country | United States |
State | Washington |
County | Benton |
Elevation | 292 ft (89 m) |
Time zone | Pacific (PST) (UTC-8) |
• Summer (DST) | PDT (UTC-7) |
Area code(s) | 509 |
GNIS feature ID | 1507501 |
Plymouth is an unincorporated community in Benton County, Washington, United States. Plymouth is located on the Columbia River across from Umatilla, Oregon. It is south of the Tri-Cities and is served by Interstate 82. It was named by early settlers who felt a nearby rock promontory resembled Plymouth Rock.