DuncanIA
With 21 residents, this town was settled in 1893.
Is Duncan a good place to live?
57% of residents live below the poverty line in Duncan, where Iowa’s towns sit at 11% and U.S. towns at 9.6%. Only 10 of the 141 Iowa towns we compare have a lower peak summer temperature than Duncan. Duncan has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
21 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
The data
Ordered by what stands out in Duncan.
In Duncan, expect snowy winters and pleasant summers
In Duncan, the January low is 7°F.
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
How healthy Duncan is
Duncan: 20% of adults have been diagnosed with depression. Among 141 Iowa towns, just 5 have a higher share of adults who had a checkup this year than Duncan. In Duncan, nearly two in five adults have high blood pressure, and 19% binge drink.
| Duncan | Iowa towns | U.S. towns | |
|---|---|---|---|
| Obesity (CDC PLACES) | 42% | 38% | 35% |
| High blood pressure (CDC PLACES) | 39% | 35% | 35% |
| Binge drink (CDC PLACES) | 19% | 20% | 16% |
| Get no exercise (CDC PLACES) | 29% | 26% | 25% |
| What stands out | Duncan | IA |
|---|---|---|
| More adults treating high blood pressure | 81.4% | 77.8% |
| More adults getting cholesterol checked | 86.4% | 84.1% |
| More adults who have had cancer | 11% | 8.7% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Duncan has a moderate natural-hazard risk, chiefly from drought
FEMA expects less storm and flood damage in Duncan than in 58% of U.S. communities. Just over a third of the town’s expected losses from natural hazards come from drought, followed by inland flooding at 29%.
FEMA National Risk Index · OpenFEMA
Everything we know about Duncan
Moving to Duncan: who provides what
Duncan is unincorporated, so Hancock County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
Colleges nearby
1 within 15 miles of the center of Duncan
About 0 of every 100 Duncan residents are enrolled in college, against 6 across Iowa.
Questions about Duncan
Short answers, built from the data on this page.
Is Duncan, IA a good place to live?
Duncan has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
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