Duncan, Illinois

Duncan, Illinois
Unincorporated community
Duncan, Illinois Show map of Illinois Duncan, Illinois Show map of the US
Coordinates: 40°59′01″N 89°47′21″W / 40.98361°N 89.78917°W / 40.98361; -89.78917Coordinates: 40°59′01″N 89°47′21″W / 40.98361°N 89.78917°W / 40.98361; -89.78917
Country	United States
State	Illinois
County	Stark
Elevation	659 ft (201 m)
Time zone	Central (CST) (UTC-6)
• Summer (DST)	CDT (UTC-5)
Area code(s)	309
GNIS feature ID	407481

Duncan is an unincorporated community in Stark County, Illinois, United States, located 4 miles (6.4 km) north-northwest of Princeville.

Duncan was laid out ca. 1870. The community is named for James H. Duncan, a United States Congressman from Massachusetts from 1849-1853.