| Rhode Island | |
| Image Alt: | An aerial photograph of an island covered in vegetation and surrounded by rivers. |
| Pushpin Map: | United States Sacramento Delta#USA California#USA |
| Coordinates: | 37.9996°N -121.5752°W |
| Location: | Northern California |
| Waterbody: | Sacramento–San Joaquin River Delta |
| Area Sqft: | or |
| Area Acre: | --> |
| Length Ft: | --> |
| Width Ft: | --> |
| Coastline Ft: | --> |
| Elevation Ft: | 0 |
| Country: | United States |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | California |
| Country Admin Divisions Title 1: | County |
| Country Admin Divisions 1: | Contra Costa |
Rhode Island is a small, partially submerged island in the San Joaquin River delta, in California. It is part of Contra Costa County. Its coordinates are 37.9996°N -121.5752°W. It appears on a 1952 United States Geological Survey map of the area.