List of United States Representatives in the 110th Congress by seniority U.S. House seniority list U.S. House seniority

| Rank_ | Representative | Party | District | Seniority_date | Notes_ |
|---|---|---|---|---|---|
| 327 | Steve Pearce | R | NM-2 | January 3, 2003 | Left the House in 2009 |
| 328 | Jon Porter | R | NV-3 | January 3, 2003 | Left the House in 2009. |
| 329 | Rick Renzi | R | AZ-1 | January 3, 2003 | Left the House in 2009 |
| 330 | Mike D. Rogers | R | AL-3 | January 3, 2003 |  |
| 331 | Dutch Ruppersberger | D | MD-2 | January 3, 2003 |  |
| 332 | Tim Ryan | D | OH-17 | January 3, 2003 |  |
| 333 | Linda Sánchez | D | CA-39 | January 3, 2003 |  |
| 334 | David Scott | D | GA-13 | January 3, 2003 |  |
| 335 | Michael Turner | R | OH-03 | January 3, 2003 |  |
| 336 | Chris Van Hollen | D | MD-8 | January 3, 2003 |  |
| 337 | Randy Neugebauer | R | TX-19 | June 3, 2003 |  |
| 338 | Ben Chandler | D | KY-6 | February 17, 2004 |  |