Illinois Route 163
IL 163 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 9.89 mi (15.92 km) | |||
| Existed | 1954–present | |||
| Major junctions | ||||
| South end | IL 158 in Millstadt | |||
| North end | IL 15 in Alorton | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | St. Clair | |||
| Highway system | ||||
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Illinois Route 163 (IL 163) is a 9.89-mile-long (15.92 km) north–south highway in southwestern Illinois. It runs from IL 158 in Millstadt north to IL 15 in Alorton; the route is located entirely within St. Clair County. IL 163 is maintained by the Illinois Department of Transportation.