| Official Name: | Sugar Ridge Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Clay |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 28.21 |
| Area Land Sq Mi: | 27.72 |
| Area Water Sq Mi: | 0.5 |
| Population As Of: | 2020 |
| Population Total: | 914 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [1] |
| Elevation M: | 177 |
| Elevation Ft: | 581 |
| Coordinates: | 39.3767°N -87.1014°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-73988[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453887 |
Sugar Ridge Township is one of eleven townships in Clay County, Indiana. As of the 2020 census, its population was 914 (down from 939 at 2010[3]) and it contained 438 housing units.[4]
Sugar Ridge Township organized in 1854. It was named from a high ridge passing through its central portion.[5]
The Aqueduct Bridge, Feeder Dam Bridge, and Jeffers Bridge are listed on the National Register of Historic Places.
According to the 2010 census, the township has a total area of, of which (or 98.26%) is land and (or 1.77%) is water.[3] Dietz Lake is in this township.
(This list is based on USGS data and may include former settlements.)
The township contains three cemeteries: Gremes, Harris and Moss.