| | Conway County | AR | 05029 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ConwayCounty+AR |
| | Columbia County | AR | 05027 | | Magnolia, AR 31620 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ColumbiaCounty+AR |
| | Cleveland County | AR | 05025 | | Pine Bluff, AR 38220 | Little Rock-North Little
Rock, AR 340 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=ClevelandCounty+AR |
| | Cleburne County | AR | 05023 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=CleburneCounty+AR |
| | Clay County | AR | 05021 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ClayCounty+AR |
| | Clark County | AR | 05019 | | Arkadelphia, AR 11660 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ClarkCounty+AR |
| | Chicot County | AR | 05017 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ChicotCounty+AR |
| | Carroll County | AR | 05015 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CarrollCounty+AR |
| | Calhoun County | AR | 05013 | | Camden, AR 15780 | | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CalhounCounty+AR |
| | Bradley County | AR | 05011 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BradleyCounty+AR |