|High scorer||Jason Loy, Cutter Morning Star (AR)|
|Site||Houston (Park Plaza Reliant Center)|
The 2004 High School National Championship was won by Thomas Jefferson, a team consisting of Sam Lederer, Steven Young, Will Sullivan, and Jacob Oppenheim. The tournament was held at Park Plaza Reliant Center in Houston, Texas, and was co-sponsored by the Texas Quiz Bowl Alliance. There were 64 teams in attendance. This would be the last HSNCT to be held outside of Rosemont, Illinois until 2011.
Thomas Jefferson beat Maggie Walker in the finals 375-290, becoming the first team to win the championship without suffering a loss in the tournament. They joined DCC as only the second two-time winner of the HSNCT. In making the finals, Maggie Walker joined those two schools in being the only other team to this time to make the finals twice. St. John's finished third after losing to Maggie Walker in the seventh round of the consolation bracket. DCC defeated State College 315-215 for fourth place.
In the small school division, Cutter Morning Star (AR), which finished in a tie for sixth overall, defeated Kent City (MI) by a score of 370-90. White Cloud (MI) finished third, defeating Taylor County (FL) in the first round of the small school playoff
Top 12 teams:
|3.||St. John's||8t.||Dorman "B"|
|4.||Detroit Catholic Central||8t.||Rufus King|
|6t.||Cutter Morning Star||8t.||Central-Macon|
Top 4 Small Schools:
|1.||Cutter Morning Star||6t.|
The following eight players were named to the tournament "All-Star Team". This was the first tournament at which NAQT recognized an All-Star Team.
|1.||Jason Loy||Cutter Morning Star||5.||Joel Knight||Detroit Catholic Central|
|2.||Noah Rahman||Solon||6.||Kevin Koai||Mission San Jose|
|3.||Slade Gilmer||Russellville||7.||David Rappaport||Andover|
|4.||John Zhang||Dunbar||8.||Daniel Bingham-Pankratz||Rufus King|
- Noah Rahman, Joel Knight, and Kevin Koai were recognized as the three top scoring non-seniors.