Vandalia Flag

Vandalia

County:
Fayette County
County Seat:
Yes
Area (mi²):
8.147
State:
Illinois

Vandalia is a city located in Fayette County, Illinois. Vandalia has a 2025 population of 7,294. It is also the county seat of Fayette County. Vandalia is currently declining at a rate of -0.44% annually and its population has decreased by -2.13% since the most recent census, which recorded a population of 7,453 in 2020.

The average household income in Vandalia is $57,095 with a poverty rate of 22.12%.The median age in Vandalia is 42.9 years: 38.7 years for males, and 48.4 years for females.

7.3K
Total Population
895
Density (mi²)
-32 -0.44%
Growth

Vandalia Population

Vandalia Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Vandalia includes 79.69% White, 11.39% Black or African American, and smaller percentages for Native American, other race, Native Hawaiian or Pacific Islander, Asian and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White4,81479.69%
Black or African American68811.39%
Two or more races3846.36%
Native American931.54%
Other race480.79%
Native Hawaiian or Pacific Islander100.17%
Asian40.07%

Vandalia Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Vandalia's average per capita income is $30,109. Household income levels show a median of $43,184. The poverty rate stands at 22.12%.

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$58,750-
Families$56,563$72,276
Households$43,184$57,095
Non Families$29,253$38,773

$30,109

Average Income

$43,184

Median Household Income

22.12%

Poverty Rate

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)