ZIP code · Plymouth · Washington · United States

ZIP code 99346 — Plymouth

Name: Plymouth (99346)
Address: Washington, 99346, US

ZIP code 99346 serves Plymouth, Washington.

Postal code: 99346
Single source Value from one source, not cross-checked.
City: Plymouth
County: Benton
State: Washington
Country: United States
Coordinates: 45.9301, -119.4023 — precision precise (locality)
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Nearby localities

99338Kennewick · 27 km
99345Paterson · 28 km
99337Kennewick · 35 km
99336Kennewick · 36 km
99352Richland · 37 km
99320Benton City · 40 km
99302Pasco · 41 km
99363Wallula · 42 km
99301Pasco · 42 km
99353West Richland · 43 km

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page