| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| OH-01 | David MannDEM | DEM | 234,433 | 51.3% | D+51.3 |
| OH-02 | REP | 253,651 | 70.1% | R+40.1 | |
| OH-03 | Tony P HallDEM | DEM | 244,811 | 59.7% | D+19.3 |
| OH-04 | REP | 240,440 | 61.3% | R+22.8 | |
| OH-05 | REP | 187,860 | 100.0% | R+100.0 | |
| OH-06 | DEM | 241,972 | 50.7% | D+1.4 | |
| OH-07 | REP | 230,432 | 71.3% | R+42.5 | |
| OH-08 | REP | 238,395 | 74.0% | R+48.0 | |
| OH-09 | Marcy KapturDEM | DEM | 243,102 | 73.6% | D+51.8 |
| OH-10 | REP | 240,239 | 56.8% | R+13.6 | |
| OH-11 | Louis StokesDEM | DEM | 223,624 | 69.2% | D+49.6 |
| OH-12 | REP | 239,058 | 71.2% | R+42.5 | |
| OH-13 | DEM | 252,258 | 53.3% | D+18.1 | |
| OH-14 | DEM | 243,994 | 67.8% | D+35.5 | |
| OH-15 | REP | 250,205 | 44.1% | R+6.2 | |
| OH-16 | REP | 248,713 | 63.7% | R+27.4 | |
| OH-17 | DEM | 257,246 | 84.2% | D+68.3 | |
| OH-18 | DEM | 243,418 | 68.3% | D+36.5 | |
| OH-19 | DEM | 263,083 | 52.6% | D+5.3 |