William S. (Bill) Porter[1] Republican William C. Jacquin[2] Republican The 1970 Arizona Senate election was held on November 3, 1970.

Voters elected all 30 members of the Arizona Senate to serve two-year terms.

The 1970 election ushered in the restructuring of the Arizona Legislature to its current format.

Primary elections were held on September 8, 1970.

[4] The newly elected senators served in the 30th Arizona State Legislature.