| | Clinton County | MO | 29049 | | Kansas City, MO-KS 28140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=ClintonCounty+MO |
| | 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 |
| | Clark County | MO | 29045 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ClarkCounty+MO |
| | Christian County | MO | 29043 | | Springfield, MO 44180 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ChristianCounty+Missouri |
| | Chariton County | MO | 29041 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CharitonCounty+MO |
| | Cedar County | MO | 29039 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CedarCounty+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 |
| | Carter County | MO | 29035 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CarterCounty+MO |
| | Carroll County | MO | 29033 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CarrollCounty+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 |