| | | Baxter County | AR | 05005 | | Mountain Home, AR 34260 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BaxterCounty+AR |
| | | Benton County | AR | 05007 | | Fayetteville-Springdale-Rogers,
AR-MO 22220 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=BentonCounty+AR |
| | | Boone County | AR | 05009 | | Harrison, AR 25460 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BooneCounty+AR |
| | | Clark County | AR | 05019 | | Arkadelphia, AR 11660 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ClarkCounty+AR |
| | | Columbia County | AR | 05027 | | Magnolia, AR 31620 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ColumbiaCounty+AR |
| | | Craighead County | AR | 05031 | | Jonesboro, AR 27860 | Jonesboro-Paragould, AR 308 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CraigheadCounty+AR |
| | | Crawford County | AR | 05033 | | Fort Smith, AR-OK 22900 | | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=CrawfordCounty+AR |
| | | Crittenden County | AR | 05035 | | Memphis, TN-MS-AR 32820 | Memphis-Clarksdale-Forrest
City, TN-MS-AR 368 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CrittendenCounty+AR |
| | | Garland County | AR | 05051 | | Hot Springs, AR 26300 | Hot Springs-Malvern, AR 284 | Central | metro county (urban) | recreation | https://maps.google.com/?q=GarlandCounty+AR |
| | | Greene County | AR | 05055 | | Paragould, AR 37500 | Jonesboro-Paragould, AR 308 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=GreeneCounty+AR |
