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 2026 population of 4,246. It is also the county seat of Moultrie County. Sullivan is currently declining at a rate of -0.61% annually and its population has decreased by -3.52% since the most recent census, which recorded a population of 4,401 in 2020.

The median household income in Sullivan is $63,229 with a poverty rate of 10.32%. The median age in Sullivan is 38.1 years: 36 years for males, and 39.6 years for females. For every 100 females there are 91.4 males.

4.2K
Total Population
1,534
Density (mi²)
-26 -0.61%
Growth

Sullivan Population

Sullivan Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20264,246-26-0.61%
20254,272-26-0.6%
20244,298350.82%
20234,263-23-0.54%
20224,286-131-2.97%
20214,41760.14%
20204,401-20-0.45%
20194,421-46-1.03%
20184,46760.13%
20174,461430.97%
20164,418-27-0.61%
20154,44550.11%
20144,440-5-0.11%
20134,445-16-0.36%
20124,46180.18%
20114,45300%
20104,453130.29%
20004,326-28-0.64%
19904,354-172-3.8%
19804,52641410.07%
19704,1121664.21%
19603,94647613.72%
19503,47036911.9%
19403,10156922.47%
19202,532-89-3.4%
19102,62100%

Median Age

Overall: 38.1 years
Female: 39.6 years
Male: 36 years

Sullivan Adults

There are 3,271 adults, (762 of whom are seniors) in Sullivan.

Sex Ratio

Female: 2,272 (52.3%)
Male: 2,076 (47.7%)

Demographics

The racial composition of Sullivan includes 95.17% White, and smaller percentages for Two or more races, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White4,13895.17%
Two or more races1132.6%
Black or African American972.23%
Race
Population ↓
Percentage (of total)
Two or more races390.9%
Race
Population ↓
Percentage (of total)
White4,13895.17%
Black or African American972.23%
Two or more races741.7%

Sullivan Marital Status

Economics and Income Statistics

Sullivan 's average per capita income is $42,615. Household income levels show a median of $63,229. The poverty rate stands at 10.32%.

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$80,905-
Families$69,418$94,610
Households$63,229$79,739
Non Families$31,424$52,731

$42,615

Average Income

$63,229

Median Household Income

10.32%

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)