Mount Vernon is a city located in Davison County, South Dakota. Mount Vernon has a 2026 population of 457. Mount Vernon is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 457 in 2020.
The median household income in Mount Vernon is $60,357 with a poverty rate of 4.98%. The median age in Mount Vernon is 28.8 years: 28.6 years for males, and 32.7 years for females. For every 100 females there are 127.8 males.
Data after 2023 is projected based on recent change
Overall: 28.8 years
Female: 32.7 years
Male: 28.6 years
There are 328 adults, (48 of whom are seniors) in Mount Vernon.
Female: 194 (43.9%)
Male: 248 (56.1%)
The racial composition of Mount Vernon includes 92.08% White, 4.52% Native American, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 407 | 92.08% |
| Native American | 20 | 4.52% |
| Two or more races | 15 | 3.39% |
Mount Vernon 's average per capita income is $42,292. Household income levels show a median of $60,357. The poverty rate stands at 4.98%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,292 | - |
| Families | $90,417 | $101,966 |
| Households | $60,357 | $71,835 |
| Non Families | $24,590 | $41,896 |
Average Income
Median Household Income
Poverty Rate