| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Sugarloaf Township |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | St. Clair |
| Leader Title: | Supervisor |
| Established Title: | Established |
| Area Total Sq Mi: | 31.77 |
| Area Land Sq Mi: | 30.67 |
| Area Water Sq Mi: | 1.09 |
| Area Water Percent: | 3.43 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 238.7 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 38.5058°N -90.195°W |
| Elevation Ft: | 646 |
| Footnotes: | [1] |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [2] |
| Population Est: | 6891 |
| Blank Name: | FIPS code |
| Blank Info: | 17-163-73456 |
Sugarloaf Township is located in St. Clair County, Illinois. As of the 2010 census, its population was 7,322 and it contained 3,219 housing units.[3]
According to the 2010 census, the township has a total area of, of which (or 96.54%) is land and (or 3.43%) is water.[3]