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.
Data after 2023 is projected based on recent change
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.
White (96.7%)
Two or more races (1.6%)
Black or African American (1.5%)
Asian (0.2%)
Race | Population | Percentage (of total) |
---|---|---|
White | 6,054 | 96.71% |
Two or more races | 100 | 1.6% |
Black or African American | 93 | 1.49% |
Asian | 13 | 0.21% |
Married
Widowed
Divorced
Separated
Never Married
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%.
Name | Median | Mean |
---|---|---|
Married Families | $104,286 | - |
Families | $87,132 | $111,737 |
Households | $68,611 | $93,217 |
Non Families | $37,481 | $50,759 |
Average Income
Median Household Income
Poverty Rate