| | | Audrain County | MO | 29007 | | Mexico, MO 33020 | Columbia-Jefferson
City-Moberly, MO 190 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=AudrainCounty+MO |
| | | Boone County | MO | 29019 | | Columbia, MO 17860 | Columbia-Jefferson
City-Moberly, MO 190 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=BooneCounty+MO |
| | | Buchanan County | MO | 29021 | | St. Joseph, MO-KS 41140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=BuchananCounty+MO |
| | | Butler County | MO | 29023 | | Poplar Bluff, MO 38740 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ButlerCounty+MO |
| | | Cape Girardeau County | MO | 29031 | | Cape Girardeau, MO-IL 16020 | Cape Girardeau-Sikeston,
MO-IL 164 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CapeGirardeauCounty+MO |
| | | Cass County | MO | 29037 | | Kansas City, MO-KS 28140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CassCounty+MO |
| | | Christian County | MO | 29043 | | Springfield, MO 44180 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ChristianCounty+Missouri |
| | | Clay County | MO | 29047 | | Kansas City, MO-KS 28140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ClayCounty+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 |
| | | Dunklin County | MO | 29069 | | Kennett, MO 28380 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DunklinCounty+MO |
