Mount Vernon township

County:: Jefferson County
County Seat:: No
Area (mi²):: 37.04
State:: Illinois

Mount Vernon township is located in Jefferson County, Illinois. Mount Vernon township has a 2025 population of 12,148. Mount Vernon township is currently declining at a rate of -0.37% annually and its population has decreased by -2.89% since the most recent census, which recorded a population of 12,510 in 2020.

The average household income in Mount Vernon township is $72,282 with a poverty rate of 16.62%. The median age in Mount Vernon township is 39.7 years: 36.5 years for males, and 42.5 years for females.

Demographics

The racial composition of Mount Vernon township includes 79.4% White, 11.94% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	9,871	79.4%
Black or African American	1,485	11.94%
Two or more races	878	7.06%
Other race	112	0.9%
Asian	72	0.58%
Native American	14	0.11%
Native Hawaiian or Pacific Islander	0	0%

Mount Vernon township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mount Vernon township's average per capita income is $36,864. Household income levels show a median of $56,504. The poverty rate stands at 16.62%.

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	$85,197	-
Families	$70,125	$82,214
Households	$56,504	$72,282
Non Families	$32,003	$44,997

$36,864

Average Income

$56,504

Median Household Income

16.62%

Poverty Rate