| Sugar Island, Illinois | |
| Settlement Type: | Unincorporated community |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Kankakee |
| Subdivision Type3: | Township |
| Subdivision Name3: | Otto |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Sugar Island |
| Coordinates: | 41.0064°N -87.8236°W |
| Elevation Footnotes: | [1] |
| Elevation Ft: | 620 |
| Population As Of: | 2000 |
| Population Total: | <100 |
| Population Density Km2: | auto |
| Timezone1: | CST |
| Utc Offset1: | -6 |
| Timezone1 Dst: | CDT |
| Utc Offset1 Dst: | -5 |
| Postal Code Type: | ZIP code |
| Blank Name: | GNIS ID |
Sugar Island is an unincorporated community in Kankakee County, Illinois, United States. Located on the Iroquois River, the soil around this community is very fertile. The town is set up in a rectangular grid. Although Sugar Island is located in Kankakee County, it is on the border of Iroquois County.