| State | County | Pop. | Density | Voted | % Dem. | % Rep. | Win |
|---|---|---|---|---|---|---|---|
| Texas | irion county | 1536 | 0.563982 | 889 | 0.134983% | 0.853768% | Republican |
| Texas | jack county | 8935 | 3.78825 | 3782 | 0.0875198% | 0.903755% | Republican |
| Texas | jackson county | 14760 | 6.87071 | 6340 | 0.162934% | 0.825079% | Republican |
| Texas | jasper county | 35529 | 14.6143 | 15608 | 0.189262% | 0.803562% | Republican |
| Texas | jeff davis county | 2274 | 0.387713 | 1305 | 0.383908% | 0.600766% | Republican |
| Texas | jefferson county | 251565 | 110.832 | 94739 | 0.486315% | 0.502116% | Republican |
| Texas | jim hogg county | 5200 | 1.7671 | 2036 | 0.587918% | 0.409136% | Democrat |
| Texas | jim wells county | 40482 | 18.066 | 13669 | 0.447655% | 0.545248% | Republican |
| Texas | johnson county | 175817 | 93.6582 | 72005 | 0.228651% | 0.75867% | Republican |
| Texas | jones county | 20083 | 8.35069 | 6741 | 0.148198% | 0.839638% | Republican |
| Texas | karnes county | 15601 | 8.05833 | 5249 | 0.235092% | 0.755953% | Republican |
| Texas | kaufman county | 136154 | 67.3376 | 56703 | 0.324586% | 0.663527% | Republican |
| Texas | kendall county | 47431 | 27.6445 | 26438 | 0.227703% | 0.759626% | Republican |
| Texas | kenedy county | 404 | 0.106952 | 194 | 0.335052% | 0.654639% | Republican |
| Texas | kent county | 762 | 0.325992 | 462 | 0.101732% | 0.88961% | Republican |