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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.

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Wasco County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Wasco County.

County State ZIP Code City Area Codes
Wasco County OR 97001 Antelope 458, 541
Wasco County OR 97021 Dufur 458, 541
Wasco County OR 97037 Maupin 458, 503, 541, 971
Wasco County OR 97040 Mosier 458, 509, 541
Wasco County OR 97057 Shaniko 458, 541
Wasco County OR 97058 The Dalles 458, 509, 541
Wasco County OR 97063 Tygh Valley 458, 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.