| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| OH-01 | DEM | 296,474 | 52.8% | D+5.5 | |
| OH-02 | REP | 257,862 | 74.5% | R+49.0 | |
| OH-03 | Joyce BeattyDEM | DEM | 258,797 | 70.5% | D+40.9 |
| OH-04 | Jim JordanREP | REP | 290,156 | 69.2% | R+38.4 |
| OH-05 | REP | 279,937 | 66.9% | R+33.8 | |
| OH-06 | Bill JohnsonREP | REP | 280,383 | 67.7% | R+35.5 |
| OH-07 | Max MillerREP | REP | 303,573 | 55.3% | R+10.7 |
| OH-08 | REP | 278,916 | 64.6% | R+29.3 | |
| OH-09 | Marcy KapturDEM | DEM | 266,017 | 56.6% | D+13.3 |
| OH-10 | REP | 272,961 | 61.7% | R+23.3 | |
| OH-11 | DEM | 215,710 | 77.8% | D+55.5 | |
| OH-12 | REP | 276,237 | 69.3% | R+38.5 | |
| OH-13 | DEM | 284,409 | 52.7% | D+5.3 | |
| OH-14 | REP | 297,028 | 61.7% | R+23.5 | |
| OH-15 | Mike CareyREP | REP | 251,251 | 57.0% | R+13.9 |