No municipalities are located in Trumbull Township, although the unincorporated community of Footville lies in the township's southwest. Two other old unincorporated communities lie farther east: Center Trumbull and East Trumbull.[4]
The first Euro-American settlers in what is now Trumbull Township were Holly and Hannah Tanner, who came from the town of Scipio, New York. Because they soon left, the first permanent resident was Daniel Woodruff, who came from New York in 1818.[6]
The township is governed by a three-member board of trustees, who are elected in November of odd-numbered years to a four-year term beginning on the following January 1. Two are elected in the year after the presidential election and one is elected in the year before it. There is also an elected township fiscal officer,[8] who serves a four-year term beginning on April 1 of the year after the election, which is held in November of the year before the presidential election. Vacancies in the fiscal officership or on the board of trustees are filled by the remaining trustees. Currently, the board is composed of chairman Mark Reed ll and members Lawrence Morse and Adam Niewiadomski.[6]