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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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Roberts County ZIP Codes

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

County State ZIP Code City Area Codes
Roberts County SD 57224 Claire City 605
Roberts County SD 57227 Corona 320, 605
Roberts County SD 57255 New Effington 605, 701
Roberts County SD 57257 Peever 605
Roberts County SD 57260 Rosholt 218, 320, 605, 701
Roberts County SD 57262 Sisseton 605
Roberts County SD 57266 Summit 605
Roberts County SD 57279 Wilmot 320, 605
Roberts County TX 79059 Miami 806

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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.