2004 New Mexico Senate election

Hysar didn't seek re-election and fellow Republican Steven Neville won the open seat.

Gorham didn't seek re-election and fellow Republican John Ryan won the open seat.

Romero retired to run for Congress and fellow Democrat Jerry Ortiz y Pino won the open seat.

Aragon didn't seek re-election and fellow Democrat James Taylor won the open seat.

Incumbent Democrat Roman Maes III has represented the 25th district since 1985.

Maes lost re-nomination to fellow Democrat John Grubesic, who went on to win the general election.

Democratic primary General election Incumbent Republican and Minority Leader Stuart Ingle has represented the 27th district since 1985.

Incumbent Democrat and President pro tempore Ben Altamirano has represented the 28th district since 1971.

Kidd didn't seek re-election and fellow Republican Vernon Asbill won the open seat.

Incumbent Republican Leonard Lee Rawson has represented the 37th district since 1993.

Republican primary General election Incumbent Democrat Mary Kay Papen has represented the 38th district since 2001.