Fairfield Township is one of thirteen townships in Tippecanoe County, Indiana. As of the 2010 census, its population was 51,113 and it contained 24,527 housing units.
Ely Homestead, a historic home in Fairfield Township, was listed on the National Register of Historic Places in 1976.
According to the 2010 census, the township has a total area of , of which (or 98.25%) is land and (or 1.75%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains ten cemeteries: Davis, Greenbush, Isley, Lafayette City Burial Grounds, Rest Haven Memorial Park, Sons of Abraham, Spring Vale, Saint Boniface, Saint Joseph's, Saint Marys, and Temple Israel.