While campaign finance is not the only factor in electoral outcomes, successful fundraising can provide a candidate with advantages during a campaign. Fundraising can also indicate party momentum.

Elections for all 30 seats in the Arizona State Senate took place on Nov. 8, 2022. Of the 30 districts up for election in 2022, 25 had a general election with more than one candidate.

This article details the five most and least expensive contested general elections in the State Senate.