Sullivan Flag

Sullivan

County:
Moultrie County
County Seat:
Yes
Area (mi²):
2.769
State:
Illinois

Sullivan is a city located in Moultrie County, Illinois. Sullivan has a 2025 population of 4,272 . It is also the county seat of Moultrie County . Sullivan is currently declining at a rate of -0.6% annually and its population has decreased by -2.93% since the most recent census, which recorded a population of 4,401 in 2020.

The average household income in Sullivan is $78,450 with a poverty rate of 11.58%. The median age in Sullivan is 38.1 years: 36.6 years for males, and 39.8 years for females. For every 100 females there are 92.1 males.

4.3K
Total Population
1,543
Density (mi²)
-26 -0.6%
Growth

Sullivan Population

Sullivan Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Sullivan includes 95.46% White, and smaller percentages for Black or African American, Two or more races, Asian and multiracial populations.

Population by Race

White (95.46%)

Black or African American (2.19%)

Two or more races (2.05%)

Asian (0.31%)

Race
Population
Percentage (of total)
White4,06095.46%
Black or African American932.19%
Two or more races872.05%
Asian130.31%

Sullivan Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sullivan's average per capita income is $43,924. Household income levels show a median of $62,845. The poverty rate stands at 11.58%.

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$90,205-
Families$70,694$93,035
Households$62,845$78,450
Non Families$35,756$48,984

$43,924

Average Income

$62,845

Median Household Income

11.58%

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)