Duncan, Iowa
Census designated place in Hancock County, Iowa · ZIP 50423, 50438
- Hancock County
- Census data · ACS 2019-2023
- 41 (2019-2023 estimate)Population
- 14Households
- 2ZIP codes
About Duncan
This page shows only what has been published about Duncan: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.
Town intelligenceOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2010 | 131 |
| 2020 | 57 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2010 Summary File 1: total population, place level, state 19, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 19, retrieved November 14, 2026.
Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 19, retrieved November 14, 2026.
- Owner occupied
- 10 units
- Renter occupied
- 4 units
- Vacancy rate
- 0%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, place level, state 19, retrieved November 14, 2026.
| Measure | Duncan | Hancock County | Iowa |
|---|---|---|---|
| Population | 41 | 10,718 | 3,195,937 |
| Median household income | Not available | $70,212 | $73,147 |
| Median age | 55.4 | 44.6 | 38.6 |
| Median home value | Not available | $129,300 | $195,900 |
| Bachelor’s degree or higher | 0.0% | 21.4% | 30.9% |
| Foreign-born residents | 0.0% | 2.4% | 5.7% |
| Owner-occupied homes | 71.4% | 82.0% | 71.5% |
| Mean commute to work | Not available | 20.0 minutes | 19.8 minutes |
Source: American Community Survey 5-year data profile 2019–2023, place level, state 19, retrieved November 14, 2026.
CommunityRules and moderation
Events in DuncanAll events
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Schools
No public school is listed for Duncan: either the NCES directory for Iowa is not loaded yet, or no school's address falls inside Duncan’s boundary. Schools in neighbouring towns are on their pages.
Frequently asked about DuncanPromoted from questions people asked
No question about Duncan has been asked often enough to publish an answer yet. Ask Duncan and the answer, once a person checks it, appears here.
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