South Dakota County Code will enable you to search South Dakota's counties by their county number prefix as shown on the South Dakota license plates. Selection Quickly Takes You to the South Dakota County in Google Maps. Geographically Curious in South Dakota will Love It. App Launches Quickly beating a Web Search Anytime. List of South Dakota Counties Swipes RapidlySouth Dakota's vehicle license registration system uses a numeric code number to indicate the county of a vehicle's registration on the license plate tag. The county number is displayed as the prefix on the license plate. The "South Dakota County Code" list is sorted numerically by county code number with the accompanying county name associated. Selecting the county code number of interest will return a Google Maps search of that county name. You'll know exactly the South Dakota county that car is registered in. Find more information at http://www.countylicenseplatecode.com/south-dakota-license-county-code.htmlConnectivity required for the Google Maps search.