Brooke Hansen of Fort Dodge, Webster County, Iowa, United States was 22 years old when she won Miss Iowa USA 2004 at the Cedar Rapids Crowne Plaza Hotel in Cedar Rapids, Linn County, Iowa on November 27, 2003. She competed against 45 other candidates.
On April 20, 2004, Hansen represented Iowa at Miss USA 2004 and competed against 50 other candidates at the Kodak Theatre in Hollywood, Los Angeles, California, USA. She was unplaced.
One year after winning Miss Iowa USA 2004, Hansen crowned her successor Joy Robinson of Altoona, Polk County, Iowa. The latter will represent Iowa at Miss USA 2005 in Baltimore, Maryland, USA.
Miss Iowa USA 2005
- beauty pageant: Miss Iowa USA
- edition: 53rd
- date: November 28, 2004
- national membership: Miss USA
FINALISTS
| PLACEMENT | CANDIDATES |
| Top 13 | Kirsten Bales Amanda Brown Alyssa Cook Rebecca Goldsmith Eliza Keast Kay Pausek Dani Reeves Carolyn Sidles |
| Top 5 | Sarah Corpstein Maranda Nichols Lexy Nuzum Joy Robinson Kasey Taylor |
SPECIAL AWARDS
| AWARD | CANDIDATE |
| Miss Congeniality | Molly Hostetler |
| Miss Photogenic | Rebecca Goldsmith |
WINNERS
| PLACEMENT | 2005 | 2004 |
| 4th runner-up | Lexy Nuzum | N/A |
| 3rd runner-up | Kasey Taylor | N/A |
| 2nd runner-up | Maranda Nichols | Maranda Nichols |
| 1st runner-up | Sarah Corpstein | Melissa Brown |
| Miss Iowa USA | Joy Robinson Altoona | Brooke Hansen Fort Dodge |
