| Poll | Date | Sample | Clinton (D) | Kasich (R) | Spread |
|---|---|---|---|---|---|
| Quinnipiac | 6/4 - 6/15 | 1191 RV | 40 | 47 | Kasich +7 |
| PPP (D) | 6/4 - 6/7 | 859 RV | 40 | 47 | Kasich +7 |
| Quinnipiac | 1/22 - 2/1 | 943 RV | 44 | 43 | Clinton +1 |
| FOX News | 10/28 - 10/30 | 803 LV | 47 | 43 | Clinton +4 |
| Quinnipiac | 7/24 - 7/28 | 1366 RV | 47 | 40 | Clinton +7 |
| Quinnipiac | 5/7 - 5/12 | 1174 RV | 47 | 42 | Clinton +5 |
| Quinnipiac | 2/12 - 2/17 | 1370 RV | 51 | 39 | Clinton +12 |
| Quinnipiac | 11/19 - 11/24 | 1361 RV | 49 | 38 | Clinton +11 |
| PPP (D) | 8/16 - 8/19 | 551 RV | 53 | 35 | Clinton +18 |