Census place · GEOID 1922710 · Hancock County
Duncan, IA ZIP codes
2 ZIP/ZCTAs intersecting this Census place (CDP) in Hancock County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Duncan (GEOID 1922710). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 6,407 (2 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
ZIP/ZCTA overlap with Duncan
Population overlap
Share of each ZIP/ZCTA’s population located within Duncan, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Duncan
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 50423 | Britt | Hancock County | 2,401 | $65,966 |
| 50438 | Garner | Hancock County | 4,006 | $69,637 |