According to the 2010 census, the township has a total area of 42.94 square miles (111.2 km2), of which 42.71 square miles (110.6 km2) (or 99.46%) is land and 0.24 square miles (0.62 km2) (or 0.56%) is water.[4] It contains the town of Kingman in the southwest along Indiana State Road 234. The unincorporated community of Centennial, with its cemetery of the same name,[5] lies to the northeast on U.S. Route 41;[6] further north, at the intersection with Indiana State Road 32,[7] lies Steam Corner. Harveysburg is north of Kingman and Yeddo is west of Centennial.
Education
Millcreek Township residents may obtain a free library card at the Kingman-Millcreek Public Library in Kingman.[8]