Duncan
Census-designated place in Hancock County, Iowa

Duncan is an unincorporated community (census-designated place) in Hancock County, Iowa, with 57 residents (2020 Census). It sits at 1,237 ft (377 m) above sea level. The nearest town is Hayfield, 4.9 miles N.
- 57residents (2020 Census)
- 1,237 ftelevation · 377 m
- 0.8 sq miland area · 2.0 km²
- 73 / sq mipopulation density
- 50438ZIP code
About Duncan
Duncan is a census-designated place (CDP) in Hancock County, Iowa, United States. The population was 57 at the 2020 census.
Text: Wikipedia · CC BY-SA 4.0
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Duncan had 57 residents in the 2020 Census.
| 2020 Census | 57 |
|---|---|
| Density | 73 per sq mi (28 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Duncan at a glance
| State | Iowa (IA) |
|---|---|
| County | Hancock County |
| Type | Census-designated place |
| Population | 57 (2020) |
| Land area | 0.79 sq mi (2.0 km²) |
| Water area | 0.01 sq mi (0.02 km²) |
| Elevation | 1,237 ft (377 m) |
| Coordinates | 43.1081° N, 93.7022° W |
| ZIP code | 50438 |
| Census code (GEOID) | 1922710 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Duncan
- Hayfield4.9 mi N
- Garner5.0 mi E
- Britt5.1 mi W
- Miller7.2 mi NE
- Klemme8.5 mi SE
- Crystal Lake9.2 mi NW
- Hutchins9.4 mi W
- Forest City10.8 mi N
- Ventura12.0 mi E
- Kanawha12.9 mi S
- Goodell13.5 mi S
- Woden13.5 mi NW
Straight-line distance between town centers.
Frequently asked questions about Duncan
What county is Duncan in?
Duncan is in Hancock County, Iowa.
What is the population of Duncan, IA?
57 people lived in Duncan at the 2020 Census.
What is the ZIP code of Duncan, IA?
The ZIP code of Duncan is 50438.
What is the elevation of Duncan?
1,237 feet (377 m) above sea level.
What towns are near Duncan?
Hayfield (4.9 mi), Garner (5.0 mi), Britt (5.1 mi), Miller (7.2 mi), Klemme (8.5 mi).
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