2004 Arizona Senate election should not be confused with 2004 United States Senate election in Arizona.
| Election Name: | 2004 Arizona Senate election |
| Country: | Arizona |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2002 Arizona Senate election |
| Previous Year: | 2002 |
| Election Date: | November 2, 2004 |
| Next Election: | 2006 Arizona Senate election |
| Next Year: | 2006 |
| Seats For Election: | All 30 seats of the Arizona Senate |
| Majority Seats: | 16 |
| Leader1: | Ken Bennett |
| Party1: | Arizona Republican Party |
| Seats Before1: | 17 |
| Seats After1: | 18 |
| Seat Change1: | 1 |
| Leader2: | Linda Aguirre |
| Party2: | Arizona Democratic Party |
| Seats Before2: | 13 |
| Seats After2: | 12 |
| Seat Change2: | 1 |
| Map Size: | 250px |
| Senate President | |
| Before Election: | Ken Bennett[1] |
| Before Party: | Arizona Republican Party |
| After Election: | Ken Bennett[2] |
| After Party: | Arizona Republican Party |
The 2004 Arizona Senate election was held on November 2, 2004. Voters elected members of the Arizona Senate in all 30 of the state's legislative districts to serve a two-year term. Primary elections were held on September 7, 2004.[3]
Prior to the elections, the Republicans held a majority of 17 seats over the Democrats' 13 seats.
Following the election, Republicans maintained control of the chamber with 18 Republicans to 12 Democrats, a net gain of one seat for Republicans.[4]
The newly elected senators served in the 47th Arizona State Legislature.
| align=center | District 1 • District 2 • District 3 • District 4 • District 5 • District 6 • District 7 • District 8 • District 9 • District 10 • District 11 • District 12 • District 13 • District 14 • District 15 • District 16 • District 17 • District 18 • District 19 • District 20 • District 21 • District 22 • District 23 • District 24 • District 25 • District 26 • District 27 • District 28 • District 29 • District 30 |