Mount Vernon Flag

Mount Vernon

County Seat:
Yes
Area (mi²):
37.04
State:
Illinois

Mount Vernon is located in Jefferson County, Illinois. Mount Vernon has a 2025 population of 12,148. It is also the county seat of Jefferson County. Mount Vernon 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 is $72,282 with a poverty rate of 16.62%.The median age in Mount Vernon is 39.7 years: 36.5 years for males, and 42.5 years for females.

12.1K
Total Population
328
Density (mi²)
-45 -0.37%
Growth

Mount Vernon Population

Mount Vernon Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (79.4%)

Black or African American (11.9%)

Two or more races (7.1%)

Other race (0.9%)

Asian (0.6%)

Native American (0.1%)

Race
Population
Percentage (of total)
White9,87179.4%
Black or African American1,48511.94%
Two or more races8787.06%
Other race1120.9%
Asian720.58%
Native American140.11%

Mount Vernon Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mount Vernon'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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)