Johnson Township is one of fifteen townships in Clark County, Illinois, USA. As of the 2010 census, its population was 383 and it contained 165 housing units.
According to the 2010 census, the township has a total area of 36.56 square miles (94.7 km2), of which 36.46 square miles (94.4 km2) (or 99.73%) is land and 0.1 square miles (0.26 km2) (or 0.27%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains these six cemeteries: Baughman, Mound, Restitution, Walnut, Partlow, and Slusser.
- Casey-Westfield Community Unit School District 4c
- Martinsville Community Unit School District 3c
- ^ a b "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Retrieved 2013-05-28.