| | Armstrong County | TX | 48011 | | Amarillo, TX 11100 | Amarillo-Borger, TX 108 | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=ArmstrongCounty+TX |
| | Bailey County | TX | 48017 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BaileyCounty+TX |
| | Borden County | TX | 48033 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BordenCounty+TX |
| | Bosque County | TX | 48035 | | Waco, TX 47380 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BosqueCounty+TX |
| | Briscoe County | TX | 48045 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BriscoeCounty+TX |
| | Callahan County | TX | 48059 | | Abilene, TX 10180 | Abilene-Sweetwater, TX 101 | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=CallahanCounty+TX |
| | Castro County | TX | 48069 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CastroCounty+TX |
| | Cochran County | TX | 48079 | | Lubbock, TX 31180 | Lubbock-Plainview, TX 352 | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CochranCounty+TX |
| | Coleman County | TX | 48083 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ColemanCounty+TX |
| | Collingsworth County | TX | 48087 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CollingsworthCounty+TX |