Newbury Township is one of eleven townships in LaGrange County, Indiana. As of the 2020 census, its population was 5,792, up from 5,219 at the previous census.
According to the 2020 "ACS 5-Year Estimates Data Profiles", 36.5% of the township's population spoke only English, while 63.4 spoke an "other [than Spanish] Indo-European language" (basically Pennsylvania German/German).
Newbury Township was organized in 1837.
The Menno Yoder Polygonal Barn was listed on the National Register of Historic Places in 1993.
According to the 2010 census, the township has a total area of , of which (or 98.55%) is land and (or 1.45%) is water.