Duncan Township, Mercer County, Illinois

Duncan Township
Township
Location in Mercer County
Mercer County's location in Illinois
Country	United States
State	Illinois
County	Mercer
Established	November 8, 1853
Area
• Total	36.66 sq mi (94.9 km2)
• Land	36.65 sq mi (94.9 km2)
• Water	0 sq mi (0 km2)  0%
Population  (2010)
• Estimate  (2016) [1]	259
• Density	7.4/sq mi (2.9/km2)
Time zone	UTC-6 (CST)
• Summer (DST)	UTC-5 (CDT)
FIPS code	17-131-20968

Duncan Township is located in Mercer County, Illinois. As of the 2010 census, its population was 272 and it contained 124 housing units. ^[2]

Duncan Township bears the name of Buford Duncan, a pioneer settler. ^[3]

Educational Attainment: 16.4% Bachelor's Degree or Higher in Duncan township ^[4] , Mercer County, Illinois

Geography

According to the 2010 census, the township has a total area of 36.66 square miles (94.9 km²), all land. ^[2]

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	259	[1]
U.S. Decennial Census [5]

Age and Sex:

• 48.8 Median Age in Duncan township, Mercer County, Illinois.
• 35.3 65 Years and Older in Duncan township, Mercer County, Illinois ^[6] .

References

1. "Population and Housing Unit Estimates" . Retrieved June 9, 2017.
2. "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Archived from the original on February 12, 2020. Retrieved May 28, 2013.
3. Callary, Edward (September 29, 2008). Place Names of Illinois. University of Illinois Press. p. 99. ISBN   978-0-252-09070-7.
4. "Explore Census Data". test.data.census.gov. Retrieved August 13, 2025.
5. "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.
6. "Explore Census Data". test.data.census.gov. Retrieved August 13, 2025.

External links

• City-data.com
• Illinois State Archives

41°17′01″N90°50′46″W / 41.28361°N 90.84611°W / 41.28361; -90.84611