| | Sebastian County | AR | 05131 | | Fort Smith, AR-OK 22900 | | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=SebastianCounty+AR |
| | Searcy County | AR | 05129 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=SearcyCounty+AR |
| | Scott County | AR | 05127 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ScottCounty+AR |
| | Saline County | AR | 05125 | | Little Rock-North Little
Rock-Conway, AR 30780 | Little Rock-North Little
Rock, AR 340 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SalineCounty+AR |
| | Randolph County | AR | 05121 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=RandolphCounty+AR |
| | Pulaski County | AR | 05119 | | Little Rock-North Little
Rock-Conway, AR 30780 | Little Rock-North Little
Rock, AR 340 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=PulaskiCounty+AR |
| | Prairie County | AR | 05117 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=PrairieCounty+AR |
| | Pope County | AR | 05115 | | Russellville, AR 40780 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=PopeCounty+AR |
| | Polk County | AR | 05113 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=PolkCounty+AR |
| | Poinsett County | AR | 05111 | | Jonesboro, AR 27860 | Jonesboro-Paragould, AR 308 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=PoinsettCounty+AR |