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.

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State directory

South Dakota ZIP Codes

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

State ZIP Code City County Area Codes
SD 57375 Stickney Aurora County 605
SD 57376 Tripp Hutchinson County 605
SD 57379 Virgil Beadle County 605
SD 57380 Wagner Charles Mix County 402, 531, 605
SD 57381 Wessington Beadle County 605
SD 57382 Wessington Springs Jerauld County 605
SD 57383 White Lake Aurora County 605
SD 57384 Wolsey Beadle County 605
SD 57385 Woonsocket Sanborn County 605
SD 57386 Yale Beadle County 605
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Geographic Map of South Dakota

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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.