Mount Vernon Flag

Mount Vernon

County Seat:
Yes
Area (mi²):
14.649
State:
Illinois

Mount Vernon is a city located in Jefferson County, Illinois. Mount Vernon has a 2026 population of 13,958. It is also the county seat of Jefferson County. Mount Vernon is currently declining at a rate of -0.73% annually and its population has decreased by -4.2% since the most recent census, which recorded a population of 14,570 in 2020.

The median household income in Mount Vernon is $55,357 with a poverty rate of 17.3%. The median age in Mount Vernon is 38.9 years: 34.9 years for males, and 43.7 years for females. For every 100 females there are 101.1 males.

14K
Total Population
953
Density (mi²)
-102 -0.73%
Growth

Mount Vernon Population

Mount Vernon Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202613,958-102-0.73%
202514,060-102-0.72%
202414,162-100-0.7%
202314,262-44-0.31%
202214,306-204-1.41%
202114,510-101-0.69%
202014,570-93-0.63%
201914,663-45-0.31%
201814,708-120-0.81%
201714,828-86-0.58%
201614,914-3-0.02%
201514,917-63-0.42%
201414,980-98-0.65%
201315,078-12-0.08%
201215,090-48-0.32%
201115,138-32-0.21%
201015,170-107-0.7%
200016,269-719-4.23%
199016,988-205-1.19%
198017,1939235.67%
197016,2707995.16%
196015,471-129-0.83%
195015,6008765.95%
194014,7242,34918.98%
193012,3752,56026.08%
19209,8151,80822.58%
19108,0072,79153.51%
19005,2161,98361.34%
18903,23300%

Median Age

Overall: 38.9 years
Female: 43.7 years
Male: 34.9 years

Mount Vernon Adults

There are 10,902 adults, (2,757 of whom are seniors) in Mount Vernon.

Sex Ratio

Female: 7,005 (49.7%)
Male: 7,085 (50.3%)

Demographics

The racial composition of Mount Vernon includes 76.27% White, 11.92% Black or African American, and smaller percentages for other race, Asian, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White10,74676.27%
Black or African American1,68011.92%
Two or more races1,2168.63%
Other race1811.28%
Asian1651.17%
Native American1020.72%
Race
Population ↓
Percentage (of total)
Two or more races2601.85%
Other race1400.99%
Black or African American1350.96%
White770.55%
Asian250.18%
Race
Population ↓
Percentage (of total)
White10,66975.72%
Black or African American1,54510.97%
Two or more races9566.78%
Asian1400.99%
Native American1020.72%
Other race410.29%

Mount Vernon Marital Status

Economics and Income Statistics

Mount Vernon 's average per capita income is $38,941. Household income levels show a median of $55,357. The poverty rate stands at 17.3%.

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$84,740-
Families$68,942$84,254
Households$55,357$71,348
Non Families$39,104$50,798

$38,941

Average Income

$55,357

Median Household Income

17.3%

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)