| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| OH-01 | REP | 169,516 | 64.8% | R+31.1 | |
| OH-02 | DEM | 171,637 | 51.4% | D+2.8 | |
| OH-03 | REP | 145,374 | 69.4% | R+46.1 | |
| OH-04 | REP | 172,957 | 70.1% | R+40.1 | |
| OH-05 | REP | 185,214 | 67.4% | R+34.9 | |
| OH-06 | REP | 174,131 | 61.5% | R+23.0 | |
| OH-07 | REP | 155,782 | 64.8% | R+29.7 | |
| OH-08 | REP | 161,357 | 68.7% | R+39.9 | |
| OH-09 | DEM | 167,969 | 54.2% | D+10.2 | |
| OH-10 | REP | 184,904 | 68.8% | R+37.5 | |
| OH-11 | REP | 168,264 | 71.7% | R+43.5 | |
| OH-12 | REP | 195,840 | 46.5% | R+0.8 | |
| OH-13 | DEM | 163,683 | 66.0% | D+35.6 | |
| OH-14 | DEM | 164,188 | 74.1% | D+49.8 | |
| OH-15 | REP | 167,371 | 65.5% | R+31.0 | |
| OH-16 | REP | 174,091 | 66.8% | R+34.9 | |
| OH-17 | REP | 167,042 | 56.8% | R+13.6 | |
| OH-18 | DEM | 185,834 | 62.9% | D+38.3 | |
| OH-19 | DEM | 179,895 | 50.2% | D+2.4 | |
| OH-20 | DEM | 121,976 | 81.0% | D+81.0 | |
| OH-21 | Louis StokesDEM | DEM | 109,626 | 83.8% | D+72.5 |
| OH-22 | DEM | 176,723 | 72.7% | D+48.6 | |
| OH-23 | DEM | 178,380 | 73.2% | D+46.4 |