De Smet is a city located in Kingsbury County, South Dakota. De Smet has a 2025 population of 1,029 . De Smet is currently declining at a rate of -0.77% annually and its population has decreased by -3.65% since the most recent census, which recorded a population of 1,068 in 2020.
The average household income in De Smet is $83,888 with a poverty rate of 5.42%. The median age in De Smet is 53.2 years: 55.3 years for males, and 52.4 years for females. For every 100 females there are 102.9 males.
Data after 2023 is projected based on recent change
The racial composition of De Smet includes 96.92% White, and smaller percentages for and multiracial populations.
White (96.92%)
Two or more races (3.08%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 944 | 96.92% |
| Two or more races | 30 | 3.08% |
Married
Widowed
Divorced
Separated
Never Married
De Smet's average per capita income is $48,583. Household income levels show a median of $60,139. The poverty rate stands at 5.42%.
Name | Median | Mean |
|---|---|---|
| Married Families | $107,361 | - |
| Families | $89,000 | $113,462 |
| Households | $60,139 | $83,888 |
| Non Families | $48,500 | $54,844 |
Average Income
Median Household Income
Poverty Rate