Plymouth, Washington | |
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Coordinates: 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 | UTC-8 (Pacific (PST)) |
• Summer (DST) | UTC-7 (PDT) |
ZIP code | 99346[1] |
Area code | 509 |
GNIS feature ID | 1507501[2] |
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.[3]