Knight Township is one of eight townships in Vanderburgh County, Indiana, USA. As of the 2010 census, its population was 67,945 and it contained 33,472 housing units. Knight Township has the largest township population in Southwestern Indiana and is the home of nearly 40 percent of Vanderburgh County's population. On October 1, 2009, the City of Evansville officially annexed territory within Knight Township bounded between Burkhardt Road, the Lloyd Expressway and Morgan Avenue.