| | | Garza County | TX | 48169 | | Lubbock, TX 31180 | Lubbock-Plainview, TX 352 | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=GarzaCounty+TX |
| | | Gillespie County | TX | 48171 | | Fredericksburg, TX 23240 | San Antonio-New
Braunfels-Kerrville, TX 484 | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=GillespieCounty+TX |
| | | Glasscock County | TX | 48173 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=GlasscockCounty+TX |
| | | Goliad County | TX | 48175 | | Victoria, TX 47020 | Victoria-Port Lavaca, TX 544 | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=GoliadCounty+TX |
| | | Gonzales County | TX | 48177 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=GonzalesCounty+TX |
| | | Gray County | TX | 48179 | | Pampa, TX 37420 | | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=GrayCounty+TX |
| | | Grayson County | TX | 48181 | | Sherman-Denison, TX 43300 | Dallas-Fort Worth, TX-OK 206 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=GraysonCounty+TX |
| | | Gregg County | TX | 48183 | | Longview, TX 30980 | | Central | metro county (urban) | mining-dependent | https://maps.google.com/?q=GreggCounty+Texas |
| | | Grimes County | TX | 48185 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=GrimesCounty+TX |
| | | Guadalupe County | TX | 48187 | | San Antonio-New
Braunfels, TX 41700 | San Antonio-New
Braunfels-Kerrville, TX 484 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=GuadalupeCounty+TX |
