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 2026 population of 7,309. It is also the county seat of Fayette County. Vandalia is currently declining at a rate of -0.33% annually and its population has decreased by -1.97% since the most recent census, which recorded a population of 7,456 in 2020.

The median household income in Vandalia is $45,469 with a poverty rate of 22.22%. The median age in Vandalia is 43.9 years: 41.6 years for males, and 45.8 years for females. For every 100 females there are 107.1 males.

7.3K
Total Population
897
Density (mi²)
-24 -0.33%
Growth

Vandalia Population

Vandalia Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20267,309-24-0.33%
20257,333-25-0.34%
20247,358-18-0.24%
20237,376-16-0.22%
20227,392-47-0.63%
20217,439-17-0.23%
20207,456-3-0.04%
20196,683-17-0.25%
20186,700-48-0.71%
20176,748-17-0.25%
20166,765-309-4.37%
20157,074-37-0.52%
20147,111-13-0.18%
20137,124190.27%
20127,105-136-1.88%
20117,2412032.88%
20107,038-4-0.06%
20006,97586114.08%
19906,11477614.54%
19805,3381783.45%
19705,160-377-6.81%
19605,537661.21%
19505,4711833.46%
19405,28894621.79%
19304,3421,02630.94%
19203,31634211.5%
19102,97430911.59%
19002,66500%

Median Age

Overall: 43.9 years
Female: 45.8 years
Male: 41.6 years

Vandalia Adults

There are 4,975 adults, (1,067 of whom are seniors) in Vandalia.

Sex Ratio

Female: 2,798 (48.3%)
Male: 2,998 (51.7%)

Demographics

The racial composition of Vandalia includes 79.12% White, 9.8% 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)
White4,58679.12%
Black or African American5689.8%
Two or more races5098.78%
Native American581%
Other race520.9%
Native Hawaiian or Pacific Islander120.21%
Asian110.19%
Race
Population ↓
Percentage (of total)
Two or more races2704.66%
Other race520.9%
White360.62%
Native American170.29%
Race
Population ↓
Percentage (of total)
White4,55078.5%
Black or African American5689.8%
Two or more races2394.12%
Native American410.71%
Native Hawaiian or Pacific Islander120.21%
Asian110.19%

Vandalia Marital Status

Economics and Income Statistics

Vandalia 's average per capita income is $33,979. Household income levels show a median of $45,469. The poverty rate stands at 22.22%.

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$72,188-
Families$60,662$79,635
Households$45,469$62,194
Non Families$31,705$43,923

$33,979

Average Income

$45,469

Median Household Income

22.22%

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)