George Kinley Democratic Calvin Hultman Republican The 1978 Iowa State Senate elections took place as part of the biennial 1978 United States elections.

State senators serve four-year terms in the Iowa State Senate, with half of the seats up for election each cycle.

A statewide map of the 50 state Senate districts in the year 1978 is provided by the Iowa General Assembly here.

To take control of the chamber from Democrats, the Republicans needed to net 2 Senate seats.

Republicans flipped control of the Iowa State Senate following the 1978 general election, with Republicans claiming 28 seats and Democrats falling to 22 seats after the election (a net gain of 4 seats for the Republicans).