| Population | 153 |
| Square Miles | 37.74 |
| Population Density | 4.05 |
| Median Age | 49 |
| Median Household Income | $21,750 |
| Per Capita Income | $36,193 |
| Percent Renters | 48% |
| Median Duke, MO 65461 For Sale Price: | $162,500 |
| Studio For Sale Median Price: | $504,000 |
| 2 Bedroom For Sale Median Price: | $55,000 |
| 3 Bedroom For Sale Median Price: | $90,000 |
| 4 Bedroom For Sale Median Price: | $275,000 |