| | Cherokee County | KS | 20021 | | Joplin, MO-KS 27900 | Joplin-Miami, MO-OK-KS 309 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CherokeeCounty+KS |
| | Cheyenne County | KS | 20023 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CheyenneCounty+KS |
| | Clark County | KS | 20025 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ClarkCounty+KS |
| | Clay County | KS | 20027 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ClayCounty+KS |
| | Cloud County | KS | 20029 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CloudCounty+KS |
| | Coffey County | KS | 20031 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CoffeyCounty+KS |
| | Comanche County | KS | 20033 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ComancheCounty+KS |
| | Cowley County | KS | 20035 | | Arkansas City-Winfield,
KS 11680 | Wichita-Arkansas
City-Winfield, KS 556 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CowleyCounty+KS |
| | Crawford County | KS | 20037 | | Pittsburg, KS 38260 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CrawfordCounty+KS |
| | Decatur County | KS | 20039 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=DecaturCounty+KS |