Mount Vernon is a city located in Davison County, South Dakota. Mount Vernon has a 2025 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 average household income in Mount Vernon is $70,461 with a poverty rate of 3.67%. The median age in Mount Vernon is 28.9 years: 28.8 years for males, and 32.7 years for females. For every 100 females there are 118.5 males.
Data after 2023 is projected based on recent change
The racial composition of Mount Vernon includes 94.05% White, 3.2% Native American, and smaller percentages for Two or more races and multiracial populations.
White (94.05%)
Native American (3.2%)
Two or more races (2.75%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 411 | 94.05% |
| Native American | 14 | 3.2% |
| Two or more races | 12 | 2.75% |
Married
Widowed
Divorced
Separated
Never Married
Mount Vernon's average per capita income is $42,813. Household income levels show a median of $58,542. The poverty rate stands at 3.67%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,500 | - |
| Families | $88,125 | $102,760 |
| Households | $58,542 | $70,461 |
| Non Families | $24,518 | $37,866 |
Average Income
Median Household Income
Poverty Rate