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.
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.
The data
Ordered by what stands out in Duncan.
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
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.