Pat Toomey (Republican) is not up for re-election this year. Next election in 2022.
| Win | Lead | |
|---|---|---|
| Dem | ||
| GOP | ||
| Lib | ||
| Grn | ||
| BFA | ||
| Other |
| No Result | |
| No Election |
| Dem | GOP | Other | Counted | |
|---|---|---|---|---|
| District 1 | 49% | 51% | 100% | |
| District 2 | 79% | 21% | >99% | |
| District 3 | 93% | 7% | >99% | |
| District 4 | 63% | 37% | 100% | |
| District 5 | 65% | 35% | 100% | |
| District 6 | 59% | 41% | 100% | |
| District 7 | 53% | 44% | 3% | 100% |
| District 8 | 55% | 45% | >99% | |
| District 9 | 40% | 60% | 100% | |
| District 10 | 49% | 51% | 100% | |
| District 11 | 41% | 59% | 100% | |
| District 12 | 34% | 66% | 98% | |
| District 13 | 30% | 70% | 100% | |
| District 14 | 42% | 58% | 100% | |
| District 15 | 32% | 68% | 100% | |
| District 16 | 47% | 51% | 1% | 100% |
| District 17 | 56% | 44% | 100% | |
| District 18 | 0% |
| Win | Lead | |
|---|---|---|
| Dem | ||
| GOP | ||
| Lib | ||
| Grn | ||
| BFA | ||
| Other |
| No Result |
| Win | Lead | |
|---|---|---|
| Dem | ||
| GOP | ||
| Lib | ||
| Grn | ||
| BFA | ||
| Other |
| No Result |
