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South Dakota PlateFinder

iPhone / iPad
  • Travel
  • Education
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South Dakota is one of a small number of states that use numeric prefixes in license plate numbers to identify the county that issued the plates. South Dakota PlateFinder was created to help you learn about South Dakota by reading the codes at the beginning of license plates you encounter while traveling. The app shows where each county is located. It also links to additional information about each county and its county seat.