| State: | IL |
| Type: | IL |
| Maint: | IDOT |
| Route: | 151 |
| Map Custom: | yes |
| Map Notes: | IL 151 highlighted in red |
| Length Mi: | 7.84 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Direction B: | North |
| Direction A: | South |
| Terminus A: | in Jacob |
| Terminus B: | in Ava |
| Counties: | Jackson |
| Established: | 1940[2] |
| Previous Route: | 150 |
| Previous Type: | IL |
| Next Type: | IL |
| Next Route: | 152 |
Illinois Route 151 is a north - south state road in southern Illinois located entirely within Jackson County. It runs from Illinois Route 3 in rural Jackson County to Illinois Route 4 in Ava. This is a distance of 7.84miles.
Illinois 151 serves as a connector through the northwest portion of Shawnee National Forest. It also is the access road to the Jackson Creek Recreational Area.
SBI Route 151 originally ran from Steeleville to Murphysboro; this was absorbed into Illinois Route 43 in 1937, and eventually became part of Illinois 4 in 1964. In 1940, Illinois 151 was placed onto its current route.[2]