| | La Salle County | TX | 48283 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LaSalleCounty+TX |
| | Lavaca County | TX | 48285 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=LavacaCounty+TX |
| | Lee County | TX | 48287 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=LeeCounty+TX |
| | Leon County | TX | 48289 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LeonCounty+TX |
| | Limestone County | TX | 48293 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LimestoneCounty+TX |
| | Lipscomb County | TX | 48295 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LipscombCounty+TX |
| | Live Oak County | TX | 48297 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LiveOakCounty+TX |
| | Llano County | TX | 48299 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=LlanoCounty+TX |
| | Loving County | TX | 48301 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LovingCounty+TX |
| | McCulloch County | TX | 48307 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=McCullochCounty+TX |