| | Lincoln County | SD | 46083 | | Sioux Falls, SD-MN 43620 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LincolnCounty+SD |
| | Lyman County | SD | 46085 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=LymanCounty+SD |
| | Marshall County | SD | 46091 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MarshallCounty+SD |
| | McCook County | SD | 46087 | | Sioux Falls, SD-MN 43620 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=McCookCounty+SD |
| | McPherson County | SD | 46089 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=McPhersonCounty+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 |
| | Mellette County | SD | 46095 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MelletteCounty+SD |
| | Miner County | SD | 46097 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MinerCounty+SD |
| | Minnehaha County | SD | 46099 | | Sioux Falls, SD-MN 43620 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MinnehahaCounty+SD |
| | Moody County | SD | 46101 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MoodyCounty+SD |