| Frentress Lake | |
| Location: | Jo Daviess County |
| Inflow: | Mississippi River |
| Outflow: | Mississippi River |
| Basin Countries: | United States |
| Length: | 1.5miles |
| Width: | 0.25miles |
| Area: | 160acres |
| Depth: | 5feet-20feetft (-ft) |
| Max-Depth: | 46feet |
| Elevation: | 591feet |
| Pushpin Map: | Illinois#USA |
| Pushpin Map Alt: | Location of Frentress Lake in Illinois, USA. |
Frentress Lake is a backwater lake located on the eastern side of the Mississippi River in Jo Daviess County in northern Illinois, to the southeast of East Dubuque. Homes on Frentress Lake experienced flooding in April 2011.[1]