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Plymouth, Washington facts for kids

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Plymouth, Washington
Plymouth, Washington with Columbia River in background.
Plymouth, Washington with Columbia River in background.
Country United States
State Washington
County Benton
292 ft (89 m)
Time zone UTC-8 (Pacific (PST))
 • Summer (DST) UTC-7 (PDT)
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.

Plymouth Washington as seen looking north from the mouth of hte Umatilla across the Columbia - July 2013
Plymouth, Washington as seen from the Oregon side of the Columbia River at the mouth of the Umatilla River.
Plymouth Washington - post office - July 2013
Plymouth, Washington post office as seen in July 2013.
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