Coordinates : 41 ° 35 ′ 28 ″ N 93 ° 36 ′ 14 ″ W \ / 41.591 ° N 93.604 ° W \ / 41.591 ; -93.604 The Iowa Senate is the upper house of the Iowa General Assembly .
Coordinates : 41 ° 35 ′ 28 ″ N 93 ° 36 ′ 14 ″ W \ / 41.591 ° N 93.604 ° W \ / 41.591 ; -93.604 The Iowa Senate is the upper house of the Iowa General Assembly , Iowa 's legislature .