| | Dunklin County | MO | 29069 | | Kennett, MO 28380 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DunklinCounty+MO |
| | Douglas County | MO | 29067 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DouglasCounty+MO |
| | Dent County | MO | 29065 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DentCounty+MO |
| | DeKalb County | MO | 29063 | | St. Joseph, MO-KS 41140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=DeKalbCounty+MO |
| | Daviess County | MO | 29061 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=DaviessCounty+MO |
| | Dallas County | MO | 29059 | | Springfield, MO 44180 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=DallasCounty+Missouri |
| | Dade County | MO | 29057 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=DadeCounty+MO |
| | Crawford County | MO | 29055 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CrawfordCounty+MO |
| | Cooper County | MO | 29053 | | Columbia, MO 17860 | Columbia-Jefferson
City-Moberly, MO 190 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CooperCounty+MO |
| | Cole County | MO | 29051 | | Jefferson City, MO 27620 | Columbia-Jefferson
City-Moberly, MO 190 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=ColeCounty+MO |