| | Union County | SD | 46127 | | Sioux City, IA-NE-SD 43580 | Sioux City-Le Mars,
IA-NE-SD 512 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=UnionCounty+SD |
| | Custer County | SD | 46033 | | Rapid City, SD 39660 | Rapid City-Spearfish, SD 452 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=CusterCounty+SD |
| | Lawrence County | SD | 46081 | | Spearfish, SD 43940 | Rapid City-Spearfish, SD 452 | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=LawrenceCounty+SD |
| | Meade County | SD | 46093 | | Rapid City, SD 39660 | Rapid City-Spearfish, SD 452 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=MeadeCounty+SD |
| | Pennington County | SD | 46103 | | Rapid City, SD 39660 | Rapid City-Spearfish, SD 452 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PenningtonCounty+SD |
| | Aurora County | SD | 46003 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=AuroraCounty+SD |
| | Beadle County | SD | 46005 | | Huron, SD 26700 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BeadleCounty+SD |
| | Bennett County | SD | 46007 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BennettCounty+SD |
| | Bon Homme County | SD | 46009 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BonHommeCounty+SD |
| | Brookings County | SD | 46011 | | Brookings, SD 15100 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=BrookingsCounty+SD |