| Election Name: | 2004 United States House of Representatives elections in Colorado |
| Country: | Colorado |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2002 United States House of Representatives elections in Colorado |
| Previous Year: | 2002 |
| Next Election: | 2006 United States House of Representatives elections in Colorado |
| Next Year: | 2006 |
| Seats For Election: | All 7 Colorado seats to the United States House of Representatives |
| Election Date: | November 2, 2004 |
| Party1: | Republican Party (United States) |
| Last Election1: | 5 |
| Seats1: | 4 |
| Seat Change1: | 1 |
| Popular Vote1: | 991,835 |
| Percentage1: | 48.64% |
| Swing1: | 5.26% |
| Party2: | Democratic Party (United States) |
| Last Election2: | 2 |
| Seats2: | 3 |
| Seat Change2: | 1 |
| Popular Vote2: | 995,283 |
| Percentage2: | 48.81% |
| Swing2: | 6.62% |
| Map Size: | 280px |
The 2004 United States House of Representatives elections in Colorado were held on November 2, 2004, with all seven House seats up for election. The winners served from January 3, 2005, to January 3, 2007.
Colorado was one of three states (along with New Mexico and Tennessee) where the party that won the most seats, did not win the most votes in the state.
| United States House of Representatives elections in Colorado,2004[1] | |||||
|---|---|---|---|---|---|
| Party | Votes | Percentage | Seats | +/– | |
| Democratic | 995,283 | 48.81% | 3 | +1 | |
| Republican | 991,835 | 48.64% | 4 | -1 | |
| Libertarian | 17,788 | 0.87% | 0 | - | |
| Green | 12,739 | 0.62% | 0 | - | |
| American Constitution | 12,596 | 0.62% | 0 | - | |
| Others | 8,770 | 0.43% | 0 | - | |
| Totals | 2,039,011 | 100.00% | 7 | - | |