| | Henderson County | TX | 48213 | | Athens, TX 11980 | Dallas-Fort Worth, TX-OK 206 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HendersonCounty+TX |
| | Fannin County | TX | 48147 | | Bonham, TX 14300 | Dallas-Fort Worth, TX-OK 206 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=FanninCounty+TX |
| | Navarro County | TX | 48349 | | Corsicana, TX 18620 | Dallas-Fort Worth, TX-OK 206 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=NavarroCounty+TX |
| | Collin County | TX | 48085 | Dallas-Plano-Irving, TX 19124 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CollinCounty+TX |
| | Dallas County | TX | 48113 | Dallas-Plano-Irving, TX 19124 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=DallasCounty+TX |
| | Denton County | TX | 48121 | Dallas-Plano-Irving, TX 19124 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=DentonCounty+TX |
| | Ellis County | TX | 48139 | Dallas-Plano-Irving, TX 19124 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=EllisCounty+TX |
| | Hunt County | TX | 48231 | Dallas-Plano-Irving, TX 19124 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=HuntCounty+TX |
| | Johnson County | TX | 48251 | Fort
Worth-Arlington-Grapevine,
TX 23104 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=JohnsonCounty+TX |
| | Kaufman County | TX | 48257 | Dallas-Plano-Irving, TX 19124 | Dallas-Fort
Worth-Arlington, TX 19100 | Dallas-Fort Worth, TX-OK 206 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=KaufmanCounty+TX |