† – Incumbent not seeking re-election Seats where the margin of victory was under 10%: Reggie Thomas was elected in December 2013 following the resignation of Kathy Stein.

Incumbent senator Alice Forgy Kerr won reelection, defeating Democratic candidate Kathy Warnecke Ryan.

Incumbent Republican senator Sara Beth Gregory was defeated for renomination by George Maxwell "Max" Wise.

Incumbent senator Robin Webb won reelection, defeating Republican candidate Tony Downey.

Incumbent senator Paul R. Hornback won reelection, defeating primary election challenger Tony McCurdy.

Incumbent senator Brandon D. Smith won reelection, defeating Democratic candidate Jordan Bowling Palmer.

Incumbent senator Dan Malano Seum won reelection, defeating primary election challenger Brenda Sue "Susie" Board.