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.

Prior to the elections, the Republicans held a majority of 17 seats over the Democrats' 13 seats.

2004 Arizona Senate election

Following the election, Republicans maintained control of the chamber with 18 Republicans to 12 Democrats, a net gain of one seat for Republicans.

2004 Arizona Senate election

The newly elected senators served in the 47th Arizona State Legislature.

2004 Arizona Senate election

Retiring Incumbents

Democrats

District 5: Jack A. Brown

District 23: Pete Rios

Republicans

District 3: Linda Binder

District 10: Jim Weiers

District 18: Mark Anderson

Incumbent Defeated in Primary Election

Republican

District 20: Slade Mead

Summary of Results by Arizona State Legislative District

Detailed Results

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

References

Senate

Arizona Senate

Arizona Senate elections