Mount Vernon

County:: Davison County
County Seat:: No
Area (mi²):: 0.34
State:: South Dakota

Mount Vernon is a city located in Davison County, South Dakota. Mount Vernon has a 2025 population of 459. Mount Vernon is currently declining at a rate of 0% annually and its population has increased by 0.22% since the most recent census, which recorded a population of 458 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.

Demographics

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.

Population by Race

Race	Population	Percentage (of total)
White	411	94.05%
Native American	14	3.2%
Two or more races	12	2.75%

Mount Vernon Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$92,500	-
Families	$88,125	$102,760
Households	$58,542	$70,461
Non Families	$24,518	$37,866

$42,813

Average Income

$58,542

Median Household Income

3.67%

Poverty Rate