| Official Name: | Charlestown Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Clark |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 65.09 |
| Area Land Sq Mi: | 64.49 |
| Area Water Sq Mi: | 0.6 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 15146 |
| Population Density Sq Mi: | 208.6 |
| Elevation Footnotes: | [2] |
| Elevation M: | 186 |
| Elevation Ft: | 610 |
| Coordinates: | 38.4594°N -85.6628°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-12142[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453197 |
Charlestown Township is one of twelve townships in Clark County, Indiana. As of the 2010 census, its population was 13,450 and it contained 5,382 housing units.[4]
Charlestown Township was organized in 1817.[5]
According to the 2010 census, the township has a total area of, of which (or 99.08%) is land and (or 0.92%) is water.[4]
The township contains several cemeteries: Armstrong Cemetery, Baird Cemetery (a.k.a. King), Bottorff, Caldwell (a.k.a. Lutz/Prather), Carter, Charlestown, Coble, County Poor Farm, Crace, Douglas, Faris, Fifty-four, Goodwin, Goodwin/Nicholson, Hammond, Hester-Rowland, Kessler (a.k.a. Faris II), Long, Mathes, McCormick (a.k.a. McCullough), McDonald, Meloy, Montgomery, Otisco Cemetery (a.k.a. Seedtick), Pleasant Grove, Robertson, Robinson, Salem Methodist Church, Shelby Cemetery, Silver Creek Cemetery, St. Michael's, James Stuart Plantation, Weimer, and Worrell/Worrall.[6]