| | Clay County | AR | 05021 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ClayCounty+AR |
| | Cleburne County | AR | 05023 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=CleburneCounty+AR |
| | Columbia County | AR | 05027 | | Magnolia, AR 31620 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ColumbiaCounty+AR |
| | Conway County | AR | 05029 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ConwayCounty+AR |
| | Crawford County | AR | 05033 | | Fort Smith, AR-OK 22900 | | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=CrawfordCounty+AR |
| | Cross County | AR | 05037 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CrossCounty+AR |
| | Dallas County | AR | 05039 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DallasCounty+AR |
| | Desha County | AR | 05041 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DeshaCounty+AR |
| | Drew County | AR | 05043 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=DrewCounty+AR |
| | Franklin County | AR | 05047 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=FranklinCounty+AR |