Altamont is a town located in Deuel County, South Dakota. Altamont has a 2025 population of 33 . Altamont is currently declining at a rate of 0% annually and its population has increased by 3.13% since the most recent census, which recorded a population of 32 in 2020.
The average household income in Altamont is $61,588 with a poverty rate of 0%. The median age in Altamont is 39 years: 37.3 years for males, and 49.5 years for females. For every 100 females there are 61.9 males.
Data after 2023 is projected based on recent change
The racial composition of Altamont includes 82.35% White, and smaller percentages for and multiracial populations.
White (82.35%)
Two or more races (17.65%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 28 | 82.35% |
| Two or more races | 6 | 17.65% |
Married
Widowed
Divorced
Separated
Never Married
Altamont's average per capita income is $55,417. Household income levels show a median of $0. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Married Families | $88,750 | - |
| Families | $88,125 | $90,114 |
| Households | - | $61,588 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate