In the 1937 electoral redistribution, the electorate shifted further south again. Matamata was lost again, and the peaks of Tongariro, Ngauruhoe, and Ruapehu now formed the boundary to the Waimarino electorate. The 1946 electoral redistribution saw the Rotorua electorate abolished, with the Bay of Plenty electorate moving west and incorporating the town of Rotorua, most of the southern area going to the Waimarino electorate including the town of Taupo, and some area in the north-west going to the Waikato electorate including Tokoroa.