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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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Kingsbury County ZIP Codes

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

County State ZIP Code City Area Codes
Kingsbury County SD 57051 Oldham 605
Kingsbury County SD 57212 Arlington 605
Kingsbury County SD 57214 Badger 605
Kingsbury County SD 57231 De Smet 605
Kingsbury County SD 57233 Erwin 605
Kingsbury County SD 57249 Lake Preston 605
Kingsbury County SD 57353 Iroquois 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.