1 Zip Code in Plymouth, Washington

TimezonePacific Time
Zip Code99346
Area Code509
Businesses in Plymouth, Washington15

1 Zip Code in Plymouth, Washington

Zip CodeCityAdministrative RegionPopulationMedian AgeArea
99346Plymouth, WashingtonWashington (state)38844.7130.6 sq mi

Plymouth, Washington

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 ..  ︎  Plymouth, Washington Wikipedia Page