John Cornyn (Republican) is not up for re-election this year. Next election in 2020.
| Win | Lead | |
|---|---|---|
| Dem | ||
| GOP | ||
| Lib | ||
| Grn | ||
| BFA | ||
| Other |
| No Result | |
| No Election |
| Dem | GOP | Other | Counted | |
|---|---|---|---|---|
| District 1 | 26% | 72% | 1% | 100% |
| District 2 | 46% | 53% | 1% | 100% |
| District 3 | 44% | 54% | 1% | 100% |
| District 4 | 23% | 76% | 1% | 100% |
| District 5 | 38% | 62% | 100% | |
| District 6 | 45% | 53% | 1% | 100% |
| District 7 | 53% | 47% | 100% | |
| District 8 | 25% | 73% | 2% | 100% |
| District 9 | 89% | 4% | 100% | |
| District 10 | 47% | 51% | 2% | 100% |
| District 11 | 18% | 80% | 1% | 100% |
| District 12 | 34% | 64% | 2% | 100% |
| District 13 | 17% | 82% | 2% | 100% |
| District 14 | 39% | 59% | 1% | 100% |
| District 15 | 60% | 39% | 2% | 100% |
| District 16 | 68% | 27% | 5% | 100% |
| District 17 | 41% | 57% | 2% | 100% |
| District 18 | 75% | 21% | 2% | 100% |
| District 19 | 25% | 75% | 100% | |
| District 20 | 81% | 19% | 100% | |
| District 21 | 48% | 50% | 2% | 100% |
| District 22 | 46% | 51% | 1% | 100% |
| District 23 | 49% | 49% | 2% | 100% |
| District 24 | 47% | 51% | 2% | 100% |
| District 25 | 45% | 54% | 2% | 100% |
| District 26 | 39% | 59% | 2% | 100% |
| District 27 | 37% | 60% | 2% | 100% |
| District 28 | 84% | 16% | 100% | |
| District 29 | 75% | 24% | 1% | 100% |
| District 30 | 91% | 9% | 100% | |
| District 31 | 48% | 51% | 2% | 100% |
| District 32 | 52% | 46% | 2% | 100% |
| District 33 | 76% | 22% | 2% | 100% |
| District 34 | 60% | 40% | 100% | |
| District 35 | 71% | 26% | 3% | 100% |
| District 36 | 27% | 73% | 100% |
| Win | Lead | |
|---|---|---|
| Dem | ||
| GOP | ||
| Lib | ||
| Grn | ||
| BFA | ||
| Other |
| No Result |
| Win | Lead | |
|---|---|---|
| Dem | ||
| GOP | ||
| Lib | ||
| Grn | ||
| BFA | ||
| Other |
| No Result |
