Hanover Township, one of thirteen townships in the county, is located in west-central Butler County, Ohio, United States, midway between Hamilton (the Butler County seat) and Oxford. It had a population of 8,311 as of the 2010 census, up from 7,878 in 2000. It is named for Hanover County, Virginia, where the early settlers originated. Statewide, other Hanover Townships are located in Ashland, Columbiana, and Licking counties. Established The twelfth in order of creation, Hanover Township was established from Ross and St. Clair townships by the Butler County Commissioners (James Blackburn, John Wingate, and William Robison) on December 2, 1811, with these boundaries: Beginning at the southeast corner of the surveyed township No. 4 in the second range east of the meridian line drawn from the mouth of the Great Miami river; thence north to the northeast corner of the same township; thence west to the northwest corner thereof; thence south to the southwest corner thereof; thence east to the place of beginning. Geography The township consisted of one full survey township in the Congress Lands, and had an area of before the city of Hamilton annexed about of the township on its eastern edge. About half the village of Millville is in Hanover Township (the remainder is in Ross Township). The unincorporated community of McGonigle lies in the township's northwest. Located in the center of the county, it borders the following townships: Milford Township - north Wayne Township - northeast St. Clair Township - east Ross Township - south Morgan Township - southwest Reily Township - west Oxford Township - northwest There are no navigable waterways in the township. It lies entirely within the Great Miami River's watershed. Beale Run, Indian Creek, Salman Run, and Lick Run drain to the south, their waters eventually entering the Great Miami below Hamilton. Becketts Run, Curlane Run, and Stony Run flow into Four Mile Creek, which enters the Great Miami above Hamilton. Government 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, 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