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, Black or African American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Native American

Two or more races

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	411	94.05%
Native American	14	3.2%
Two or more races	12	2.75%
Black or African American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

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