2008 Colorado Democratic Presidential Caucus
| Pollster | Dates | N/Pop | Clinton | Edwards | Obama | Undecided |
| Denver Post/ Mason-Dixon | 1/21-23/08 | 400 LV | 32 | 17 | 34 | 14 |
| ARG | 9/15-18/07 | 600 LV | 36 | 19 | 20 | 15 |
| Ciruli | 9/12-15/07 | 174 RV | 29 | 23 | 23 | 15 |
| ARG | 7/15-18/07 | 600 LV | 39 | 10 | 22 | 14 |
| ARG | 3/29 - 4/2/07 | 600 LV | 34 | 17 | 23 | 13 |
