Explore Duncan, Iowa, with this interactive street and satellite map.
| City | Duncan |
| State | Iowa (IA) |
| County | Hancock County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 43.104683 |
| Longitude | -93.711327 |
| Population | 57 |
| Density | 28.0 /km² |
| Incorporated | N/A |
| ZIP Code | 50423 |
| Area Code | 515 |
| County Seat | Garner |
| School District | Garner-Hayfield-Ventura Community School District |
Duncan rises from the expansive, tilled flatness of the Iowa plains, where the horizon stretches wide and unencumbered under a vast, pale sky. It lies 26.0 miles west of Mason City, IA (from Mason City, IA: bearing 263°T), and is situated 5.5 miles west of Garner. The land here is a study in geometric precision, defined by the seasonal shifting of corn and soybean stalks that ripple like a verdant sea when the prairie winds gather strength. Only a mile away, the quiet waters of Eagle Lake reflect the changing light of the day, offering a stillness that complements the nearby Eagle Lake (Hancock) Wetland Complex. The earth itself feels ancient and heavy with a dark, fertile richness, sustaining a landscape that remains largely untouched by the verticality of mountains, though the distant Pilot Knob stands as a faint, singular reminder of the terrain’s subtle variations thirteen miles to the east.
Agriculture provides the primary pulse of Duncan, as the rhythms of planting and harvest dictate the pace of life for those who work the deep, productive soil. Settlers of European descent brought with them a tradition of disciplined husbandry, and today that heritage persists in the quiet, methodical care given to the fields and the modest, sturdy architecture of the homesteads. Two miles away, the West Branch Iowa River traces its course through the valley, serving as a silent, enduring artery for the local ecosystem. Life in Duncan maintains a modest, literate civility, where the evening shadows lengthen across the gravel roads and the hum of machinery fades into the crisp, cooling air, leaving behind a profound sense of isolation and focus that defines this corner of the state.
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This page provides an embedded street and satellite map of Duncan, Iowa. Coordinates: 43.104683, -93.711327. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Duncan includes the ZIP code (50423), telephone area code (515), county seat of Hancock County (Garner), and school district assignment (Garner-Hayfield-Ventura Community School District).
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |