Save town Compare Needs More Love
Town guide

Duncan

A township of 301 people in Mercer County, Illinois
Be the first to joinEarn karma for joining →
1

Now in Duncan

What’s happening this week

All posts →
From your neighbors

What’s happening

A preview of what neighbors share. Be the first to post in Duncan.

Weather

Forecast →
Coming up

Upcoming events

Nothing on the calendar yet

Put the next local happening — a market, a meeting, a concert — on the map.

Add an event →
Around town

Local news

All news →

Loading local headlines…

Headlines via Google News · Articles belong to their publishers.

2

Around town

The places and views that make it Duncan

Explore places →

Outdoors in Duncan

Parks & trails →
Conserved land0%none recorded
Trails1.9 mi0.1 mi per sq mi
Parks & preserves0named on the map

Know a trail or park that’s missing? Anyone can add it to OpenStreetMap, and it shows up here on the next refresh.

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

3

Know Duncan

The town at a glance, and the guide to how things work

Open the full guide →

About Duncan

Township in Illinois, United States
301Population
36.7 sq miArea

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)

Town numbers

Living in Duncan

Work & commute in Duncan

Full picture →

Most working residents leave Duncan for work: only 0% work in town. The top destinations are Aledo (23%), Muscatine (13%) and Rock Island (6%). Half commute less than 16 miles.

Aledo
23%
Muscatine, IA
13%
Rock Island
6%
Davenport, IA
6%
Census LEHD 2023 · ACSWork & commute in Duncan →

Health in Duncan

Compared with Illinois

2better than IL·9worse

of 32 measures CDC estimates. The other 21 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Genesis Medical Center, AledoAledo · 6.7 mi · ER · rural critical access
Community Health Care, Inc. Mcsa MuscatineMuscatine · 14.5 mi · sliding-scale fees
Primary careShortage · county-wide
DentalNo shortage
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 61231, 61260, 61279 · CMS · HRSAHealth in Duncan →

Natural hazards in Duncan

82
Very high

Expected storm and flood damage is higher than in 82% of U.S. communities.

🌊 Inland flooding🌵 Drought💨 Strong wind
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Duncan →

Climate in Duncan

Full climate →

Duncan has cold winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 14°, and about 22 inches of snow falls in a normal winter.

34° / 18°Winter
61° / 40°Spring
83° / 63°Summer
63° / 42°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Duncan →

Libraries near Duncan

See all →
Nearest: Edwards River Public Library DistrictAledo · 7.4 miles · 50 hrs a week

Famous people close to Duncan

See all 21 →

How things work in Duncan

All explainers →
The porch light’s on

Where to, neighbor?

You’re in Duncan, ILMercer CountyView boundary

Nearby

All towns & citiesExplore the map
Loading boundary…

Duncan is your selected town. The feed includes posts assigned to this town, not a distance radius or ZIP code.

Neighborhoods narrow the feed further, while townwide announcements, events, and issues remain visible.

Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01