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
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Oregon ZIP Codes

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

State ZIP Code City County Area Codes
OR 97835 Helix Umatilla County 458, 509, 541
OR 97836 Heppner Morrow County 458, 541
OR 97837 Hereford Baker County 458, 541
OR 97838 Hermiston Umatilla County 458, 509, 541
OR 97839 Lexington Morrow County 458, 541
OR 97840 Oxbow Baker County 208, 458, 541, 986
OR 97841 Imbler Union County 458, 541
OR 97842 Imnaha Wallowa County 208, 458, 509, 541, 986
OR 97843 Ione Morrow County 458, 541
OR 97844 Irrigon Morrow County 458, 509, 541
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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.