Duncan Mills, Illinois | |
|---|---|
  Duncan Mills  Duncan Mills | |
| Coordinates: 40°20′24″N 90°11′27″W / 40.34000°N 90.19083°W | |
| Country | United States |
| State | Illinois |
| County | Fulton |
| Elevation | 479 ft (146 m) |
| Time zone | UTC-6 (Central (CST)) |
| • Summer (DST) | UTC-5 (CDT) |
| Area code | 309 |
| GNIS feature ID | 407486[1] |
Duncan Mills is an unincorporated community in Fulton County, Illinois, United States. Duncan Mills is located at the junction of US 24, US 136, and IL 100 south of Lewistown.