| State | County | Pop. | Density | Voted | % Dem. | % Rep. | Win |
|---|---|---|---|---|---|---|---|
| Texas | caldwell county | 43664 | 30.9204 | 14940 | 0.446586% | 0.53755% | Republican |
| Texas | calhoun county | 21290 | 16.2184 | 7856 | 0.273422% | 0.71805% | Republican |
| Texas | callahan county | 13943 | 5.98576 | 6832 | 0.107436% | 0.879977% | Republican |
| Texas | cameron county | 423163 | 183.354 | 114159 | 0.561173% | 0.429506% | Democrat |
| Texas | camp county | 13094 | 25.817 | 5058 | 0.275603% | 0.716884% | Republican |
| Texas | carson county | 5926 | 2.48641 | 3116 | 0.0953145% | 0.891849% | Republican |
| Texas | cass county | 30026 | 12.3731 | 13924 | 0.200733% | 0.792373% | Republican |
| Texas | castro county | 7530 | 3.2505 | 2083 | 0.223716% | 0.769083% | Republican |
| Texas | chambers county | 43837 | 28.3437 | 21650 | 0.184619% | 0.801524% | Republican |
| Texas | cherokee county | 52646 | 19.3045 | 19508 | 0.215809% | 0.774093% | Republican |
| Texas | childress county | 7306 | 4.05061 | 2279 | 0.136025% | 0.852567% | Republican |
| Texas | clay county | 10471 | 3.7134 | 5741 | 0.10695% | 0.882947% | Republican |
| Texas | cochran county | 2853 | 1.42121 | 1000 | 0.177% | 0.809% | Republican |
| Texas | coke county | 3387 | 1.43474 | 1779 | 0.100056% | 0.891512% | Republican |
| Texas | coleman county | 8175 | 2.50121 | 4124 | 0.10936% | 0.882881% | Republican |