| Episode | Premiere Date |
| Pilot | 09/22/99 |
| Post Hoc, Ergo Propter Hoc | 09/29/99 |
| A Proportional Response | 10/06/99 |
| Five Votes Down | 10/13/99 |
| The Crackpots and These Women | 10/20/99 |
| Mr. Willis of Ohio | 11/03/99 |
| The State Dinner | 11/10/99 |
| Enemies | 11/17/99 |
| The Short List | 11/24/99 |
| In Excelsis Deo | 12/15/99 |
| Lord John Marbury | 01/05/00 |
| He Shall, From Time to Time. . . | 01/12/00 |
| Take Out the Trash Day | 01/26/00 |
| Take This Sabbath Day | 02/09/00 |
| Celestial Navigation | 02/16/00 |
| 20 Hours in LA | 02/23/00 |
| The White House Pro-Am | 03/22/00 |
| Six Meetings Before Lunch | 04/05/00 |
| Let Bartlet Be Bartlet | 04/26/00 |
| Mandatory Minimums | 05/03/00 |
| Lies, Damn Lies and Statistics | 05/10/00 |
| What Kind of Day Has it Been | 05/17/00 |
| In the Shadow of Two Gunmen, Part 1 | 10/04/00 |
| In the Shadow of Two Gunmen, Part 2 | 10/04/00 |
| The Midterms | 10/18/00 |
| In This White House | 10/18/00 |
| And It's Surely To Their Credit | 11/01/00 |
| The Lame Duck Congress | 11/08/00 |
| The Portland Trip | 11/15/00 |
| Shibboleth | 11/22/00 |
| Galileo | 11/29/00 |
| Noel | 12/20/00 |
| The Leadership Breakfast | 01/10/01 |
| The Drop-In | 01/24/01 |
| Bartlet's Third State of the Union | 02/07/01 |
| The War at Home | 01/14/01 |
| Ellie | 02/01/01 |
| Somebody's Going to Emergency, Somebody's Going to Jail | 02/28/01 |
| The Stackhouse Filibuster | 03/14/01 |
| 17 People | 04/04/01 |
| Bad Moon Rising | 04/25/01 |
| The Fall's Gonna Kill You | 05/02/01 |
| 18th and Potomac | 05/09/01 |
| Two Cathedrals | 05/16/01 |
| Isaac and Ishmael | 10/03/01 |
| Manchester, Part 1 | 10/10/01 |
| Manchester, Part 2 | 10/17/01 |
| Ways and Means | 10/24/01 |
| On the Day Before | 10/31/01 |
| War Crimes | 11/07/01 |
| Gone Quiet | 11/14/01 |
| The Indians in the Lobby | 11/21/01 |
| The Women of Qumar | 11/28/01 |
| Bartlet for America | 12/12/01 |
| H.Con-172 | 01/09/02 |
| 100,000 Airplanes | 01/16/02 |
| The Two Bartlets | 01/30/02 |
| Night Five | 02/06/02 |
| Hartsfield's Landing | 02/27/02 |
| Dead Irish Writers | 03/06/02 |
| The U.S. Poet Laureate | 03/27/02 |
| Stirred | 04/03/02 |
| Documentary Special | 04/24/02 |
| Enemies Foreign and Domestic | 05/01/02 |
| The Black Vera Wang | 05/08/02 |
| We Killed Yamamoto | 05/15/02 |
| Posse Comitatus | 05/22/02 |
| 20 Hours in America Part 1 | 09/25/02 |
| 20 Hours in America Part 2 | 09/25/02 |
| College Kids | 10/02/02 |
| The Red Mass | 10/10/02 |
| Debate Camp | 10/16/02 |
| Game On | 10/30/02 |
| Election Night | 11/06/02 |
| Process Stories | 11/13/02 |
| Swiss Diplomacy | 11/20/02 |
| Arctic Radar | 11/27/02 |
| California 47th | 02/19/03 |
| Red Haven's On Fire | 02/26/03 |
| Transition | 04/23/06 |
| Tomorrow | 05/14/06 |
