Nov 2, 2004
All the incumbents won back their seats in the House of Representatives, while John McCain easily won re-election to the United States Senate.
George W Bush won Arizona's 10 electoral votes.
| Arizona Senate III | ||
| John McCain Incumbent (77%) REP | ||
| Also on the ballot: Stuart Starky (DFL - 20%); Ernest Hancock (LIB - 3%) | ||
| Arizona 1st District | ||
| Rick Renzi Incumbent (59%) REP | ||
| Also on the ballot: Paul Babbitt (DFL - 36%); John Crockett (LIB - 5%) | ||
| Arizona 2nd District | ||
| Trent Franks Incumbent (59%) REP | ||
| Also on the ballot: Randy Camacho (DFL - 39%); Powell Gammill (LIB - 2%) | ||
| Arizona 3rd District | ||
| John B Shadegg Incumbent (80%) REP | ||
| Also on the ballot: Mark Yannone (LIB - 20%) | ||
| Arizona 4th District | ||
| Ed Pastor Incumbent (70%) DFL | ||
| Also on the ballot: Don Karg (REP - 26%); Gary Fallon (LIB - 4%) | ||
| Arizona 5th District | ||
| J D Hayworth Incumbent (60%) REP | ||
| Also on the ballot: Elizabeth Rogers (DFL - 38%); Michael Kielsky (LIB - 2%) | ||
| Arizona 6th District | ||
| Jeff Flake Incumbent (79%) REP | ||
| Also on the ballot: Craig Stritar (LIB - 21%) | ||
| Arizona 7th District | ||
| Raul Grijalva Incumbent (62%) DFL | ||
| Also on the ballot: Joseph Sweeney (REP - 34%); Dave Kaplan (4%) | ||
| Arizona 8th District | ||
| Jim Kolbe Incumbent (60%) REP | ||
| Also on the ballot: Eva Bacal (DFL - 36%); Robert Anderson (LIB - 4%) | ||