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_ |
|---|---|---|---|---|---|
| 178 | Robert Aderholt | R | AL-4 | January 3, 1997 |  |
| 179 | Tom Allen | D | ME-1 | January 3, 1997 | Left the House in 2009 |
| 180 | Marion Berry | D | AR-1 | January 3, 1997 |  |
| 181 | Roy Blunt | R | MO-7 | January 3, 1997 | Minority Whip |
| 182 | Leonard Boswell | D | IA-3 | January 3, 1997 |  |
| 183 | Allen Boyd | D | FL-02 | January 3, 1997 |  |
| 184 | Kevin Brady | R | TX-08 | January 3, 1997 |  |
| 185 | Chris Cannon | R | UT-3 | January 3, 1997 | Left the House in 2009 |
| 186 | Julia Carson | D | IN-7 | January 3, 1997 | Died December 15, 2007 |
| 187 | Danny Davis | D | IL-07 | January 3, 1997 |  |
| 188 | Diana DeGette | D | CO-1 | January 3, 1997 |  |