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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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Edmunds County ZIP Codes

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

County State ZIP Code City Area Codes
Edmunds County SD 57428 Bowdle 605
Edmunds County SD 57448 Hosmer 605
Edmunds County SD 57451 Ipswich 605
Edmunds County SD 57471 Roscoe 605

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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.