| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| OH-01 | DEM | 220,658 | 55.1% | D+14.8 | |
| OH-02 | REP | 218,453 | 68.6% | R+37.2 | |
| OH-03 | Tony P HallDEM | DEM | 151,398 | 100.0% | D+100.0 |
| OH-04 | REP | 209,217 | 77.5% | R+55.0 | |
| OH-05 | REP | 211,391 | 62.7% | R+25.4 | |
| OH-06 | Bob McEwanREP | REP | 202,828 | 74.0% | R+48.0 |
| OH-07 | REP | 192,858 | 76.7% | R+55.6 | |
| OH-08 | REP | 201,873 | 76.9% | R+53.8 | |
| OH-09 | Marcy KapturDEM | DEM | 214,909 | 54.9% | D+11.5 |
| OH-10 | REP | 204,509 | 73.0% | R+46.0 | |
| OH-11 | DEM | 199,374 | 66.8% | D+33.5 | |
| OH-12 | REP | 214,114 | 69.5% | R+39.1 | |
| OH-13 | DEM | 198,756 | 66.4% | D+36.4 | |
| OH-14 | DEM | 218,095 | 71.4% | D+42.8 | |
| OH-15 | REP | 207,181 | 71.6% | R+43.2 | |
| OH-16 | REP | 210,447 | 72.4% | R+44.8 | |
| OH-17 | DEM | 230,661 | 53.3% | D+7.6 | |
| OH-18 | DEM | 205,115 | 75.9% | D+51.9 | |
| OH-19 | DEM | 252,839 | 55.2% | D+12.5 | |
| OH-20 | DEM | 167,155 | 100.0% | D+100.0 | |
| OH-21 | Louis StokesDEM | DEM | 200,648 | 82.4% | D+67.7 |