De Smet is a CDP located in Benewah County, Idaho. De Smet has a 2026 population of 125. De Smet is currently declining at a rate of -2.34% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median age in De Smet is 17.9 years: 17.9 years for males, and 17.5 years for females. For every 100 females there are 64.6 males.
Data after 2023 is projected based on recent change
Overall: 17.9 years
Female: 17.5 years
Male: 17.9 years
There are 67 adults, (12 of whom are seniors) in De Smet.
Female: 82 (60.7%)
Male: 53 (39.3%)
The racial composition of De Smet includes 82.22% Native American, 6.67% White, 3.7% other race, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Native American | 111 | 82.22% |
| Two or more races | 10 | 7.41% |
| White | 9 | 6.67% |
| Other race | 5 | 3.7% |