Demographics & People — Duncan, Iowa
Population Overview
| Population (Census) | 41 |
|---|
| Estimated 2026 | ~0 |
|---|
| Median Age | 55.3 |
|---|
| Total Households | 14 |
|---|
| Family Households | 0 |
|---|
| Average Household Size | N/A |
|---|
| Diversity Index | N/A (N/A) |
|---|
Race & Ethnicity
| White | 41 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 38 |
| Unclassified or not reported | 30 |
| Dutch | 17 |
| English | 12 |
| Norwegian | 12 |
| Scottish | 5 |
Language
| English Only | 41 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 41 |
|---|
Veterans
| Veterans | 0 |
|---|
| Population 18+ | 70 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Duncan, Iowa.
