As of the 2010 census, its population was 1,626 and it contained 691 housing units.

[3] The township was named for John Hart, a local judge.

[2] (This list is based on USGS data and may include former settlements.)

Hart township contains these six cemeteries: Lynnville, Massey, Morrison, Mount Olive, Mt.

Zion, and Turpin Hill Cemetery