Sullivan Flag

Sullivan

County:
Moultrie County
County Seat:
Yes
Area (mi²):
59.452
State:
Illinois

Sullivan is located in Moultrie County, Illinois. Sullivan has a 2025 population of 6,140. It is also the county seat of Moultrie County. Sullivan is currently declining at a rate of -0.37% annually and its population has decreased by -2.26% since the most recent census, which recorded a population of 6,282 in 2020.

The average household income in Sullivan is $93,217 with a poverty rate of 8.26%. The median age in Sullivan is 41.9 years: 38.7 years for males, and 43.8 years for females.

6.1K
Total Population
103
Density (mi²)
-23 -0.37%
Growth

Sullivan Population

Sullivan Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Sullivan includes 96.71% White, and smaller percentages for Two or more races, Black or African American, Asian and multiracial populations.

Population by Race

White (96.7%)

Two or more races (1.6%)

Black or African American (1.5%)

Asian (0.2%)

Race
Population
Percentage (of total)
White6,05496.71%
Two or more races1001.6%
Black or African American931.49%
Asian130.21%

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 $47,208. Household income levels show a median of $68,611. The poverty rate stands at 8.26%.

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$104,286-
Families$87,132$111,737
Households$68,611$93,217
Non Families$37,481$50,759

$47,208

Average Income

$68,611

Median Household Income

8.26%

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)