Duncan TownshipIL
A town of 255.
Is Duncan Township a good place to live?
Duncan Township’s median age is 62.4 years, against 40.7 years in Illinois’ towns and 40.5 years across U.S. towns. No town among the 769 in Illinois we compare has a higher share of households owning their home than Duncan Township. Duncan Township has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
255 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Moving to Duncan Township: who provides what
Who provides power, water and the rest in Duncan Township, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
The data
Ordered by what stands out in Duncan Township.
Duncan Township faces a very high natural-hazard risk, led by inland flooding
Expected storm and flood damage is higher than in 82% of U.S. communities.
FEMA National Risk Index · OpenFEMA
Most of Duncan Township’s workers commute out: the town has 0.0 jobs for each of them
At 22 minutes, Duncan Township’s average trip to work is where Illinois’ towns sit at 26 minutes and U.S. towns at 25 minutes. The top destinations are Aledo (23%), Muscatine (13%) and Rock Island (6%). Half commute less than 16 miles.
| Duncan Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 22 minutes | 26 minutes | 25 minutes |
| Below the poverty line | 9.3% | 8.4% | 9.6% |
Where working residents work
Census LEHD 2023 · ACS
In Duncan Township, expect four seasons and pleasant summers
Duncan Township has cold winters and warm summers. July afternoons reach 84°, January nights drop to 14° and about 22 inches of snow falls in a winter.
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
How healthy Duncan Township is
Duncan Township beats the Illinois average on 2 of 32 CDC measures and trails it on 9. 15% of Duncan Township adults report frequent physical distress.
| Duncan Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Frequent physical distress (CDC PLACES) | 15% | 13% | 14% |
| Smoke cigarettes (CDC PLACES) | 16% | 13% | 14% |
| High blood pressure (CDC PLACES) | 38% | 35% | 35% |
| Obesity (CDC PLACES) | 39% | 37% | 35% |
| What stands out | Duncan Township | IL |
|---|---|---|
| Fewer uninsured adults | 8% | 9.9% |
| Fewer adults facing housing insecurity | 10.9% | 13.2% |
| More older adults who have lost all their teeth | 15.4% | 10.3% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Conserved land covers 0% of Duncan Township
1.9 miles of trail in 0 parks and preserves. The trail density in Duncan Township is 0.1 miles per square mile.
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Rock Island Arsenal and 13 more within 40 miles
Museums, parks, gardens and other places to visit around Duncan Township. Close and well known come first.
23 mi Ancient siteRock Island Arsenal
38 mi MuseumHerbert Hoover Presidential Library and Museum
19 mi MuseumBlack Hawk State Historic Site
22 mi MuseumFigge Art Museum77K visitors a year
37 mi National Historic SiteHerbert Hoover National Historic Site107K visitors a year
22 mi MuseumPutnam MuseumPhoto credits
Rock Island Arsenal: Robert A, Ryan, J. Ceronia, and Bruce A. Harms, Photographers, Public domain · Herbert Hoover Presidential Library and Museum: Shadow2700, Public domain · Black Hawk State Historic Site: Bill Whittaker (talk). Original uploader was Billwhittaker at English Wikipedia, CC BY-SA 3.0 · Figge Art Museum: Ctjf83, CC BY-SA 3.0 · Herbert Hoover National Historic Site: Billwhittaker, CC BY-SA 3.0 · Putnam Museum: Ctjf83 of English Wikipedia (log), Public domain
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Everything we know about Duncan Township
Colleges nearby
None within 15 miles of Duncan Township; the nearest are
About 0 of every 100 Duncan Township residents are enrolled in college, against 6 across Illinois.
100% of working residents leave Duncan Township for work
Where Duncan Township’s working residents go each day. Line width shows the share.
Census LEHD 2023
About Duncan Township
Township in Illinois, United States
Duncan Township is located in Mercer County, Illinois. As of the 2010 census, its population was 272 and it contained 124 housing units. Duncan Township bears the name of Buford Duncan, a pioneer settler. Educational Attainment: 16.4% Bachelor's Degree or Higher in Duncan township, Mercer County, Illinois
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 37 sq mi
Questions about Duncan Township
Short answers, built from the data on this page.
Is Duncan Township, IL a good place to live?
Duncan Township has fewer than 1,000 residents, too few for fair grades; the figures below are still real.