U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
State directory

Washington ZIP Codes

Complete postal directory, details, and geographic map for the State of Washington.

State ZIP Code City County Area Codes
WA 98563 Montesano Grays Harbor County 360, 564
WA 98564 Mossyrock Lewis County 360, 564
WA 98565 Napavine Lewis County 360, 564
WA 98566 Neilton Grays Harbor County 360, 564
WA 98568 Oakville Grays Harbor County 360, 564
WA 98569 Ocean Shores Grays Harbor County 360, 564
WA 98570 Onalaska Lewis County 360, 564
WA 98571 Pacific Beach Grays Harbor County 360, 564
WA 98572 Pe Ell Lewis County 360, 564
WA 98575 Quinault Grays Harbor County 360, 564
Page 40 of 74

Geographic Map of Washington

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.