Hermosa is a town located in Custer County, South Dakota. Hermosa has a 2025 population of 379 . Hermosa is currently declining at a rate of -0.52% annually and its population has decreased by -2.07% since the most recent census, which recorded a population of 387 in 2020.
The average household income in Hermosa is $74,950 with a poverty rate of 14.86%. The median age in Hermosa is 45.4 years: 51.3 years for males, and 37.5 years for females. For every 100 females there are 96.0 males.
Data after 2023 is projected based on recent change
The racial composition of Hermosa includes 82.09% White, 4.39% Native American, and smaller percentages for Asian, other race and multiracial populations.
White (82.09%)
Two or more races (11.82%)
Native American (4.39%)
Asian (1.35%)
Other race (0.34%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 243 | 82.09% |
| Two or more races | 35 | 11.82% |
| Native American | 13 | 4.39% |
| Asian | 4 | 1.35% |
| Other race | 1 | 0.34% |
Married
Widowed
Divorced
Separated
Never Married
Hermosa's average per capita income is $35,625. Household income levels show a median of $53,194. The poverty rate stands at 14.86%.
Name | Median | Mean |
|---|---|---|
| Married Families | $81,176 | - |
| Families | $80,147 | $90,036 |
| Households | $53,194 | $74,950 |
| Non Families | $37,875 | $40,069 |
Average Income
Median Household Income
Poverty Rate