The 1928 Iowa Senate elections took place as part of the biennial 1928 United States elections. Iowa voters elected state senators in 31 of the senate's 50 districts. State senators serve four-year terms in the Iowa Senate. A statewide map of the 50 state Senate districts in the 1928 elections is provided by the Iowa General Assembly here. The primary election on June 4, 1928 determined which candidates appeared on the November 6, 1928 general election ballot. To claim control of the chamber from Republicans, the Democrats needed to net 24 Senate seats.