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_ |
|---|---|---|---|---|---|
| 267 | Steve Israel | D | NY-02 | January 3, 2001 |  |
| 268 | Darrell Issa | R | CA-49 | January 3, 2001 |  |
| 269 | Timothy Johnson | R | IL-15 | January 3, 2001 |  |
| 270 | Ric Keller | R | FL-08 | January 3, 2001 | Left the House in 2009. |
| 271 | Mark Kirk | R | IL-10 | January 3, 2001 |  |
| 272 | James Langevin | D | RI-2 | January 3, 2001 |  |
| 273 | Rick Larsen | D | WA-2 | January 3, 2001 |  |
| 274 | Jim Matheson | D | UT-2 | January 3, 2001 |  |
| 275 | Betty McCollum | D | MN-4 | January 3, 2001 |  |
| 276 | Mike Pence | R | IN-6 | January 3, 2001 |  |
| 277 | Todd Platts | R | PA-19 | January 3, 2001 |  |
| 278 | Adam Putnam | R | FL-12 | January 3, 2001 |  |