Colorado chooses 21 other delegates during district conventions from May 24 to June 7, 2008.
| Candidate | Votes | Percentage | Delegates |
|---|---|---|---|
| Mitt Romney | 42,218 | 60.11% | 22 |
| John McCain | 12,918 | 18.39% | 0 |
| Mike Huckabee | 8,960 | 12.76% | 0 |
| Ron Paul | 5,910 | 8.42% | 0 |
| Alan Keyes | 67 | 0.1% | 0 |
| Fred Thompson | 63 | 0.09% | 0 |
| Rudy Giuliani | 58 | 0.08% | 0 |
| Duncan Hunter | 25 | 0.04% | 0 |
| Tom Tancredo | 10 | 0.01% | 0 |
| Total | 70,229 | 100% | 22 |