Sullivan

County:: Sullivan County
County Seat:: Yes
Area (mi²):: 1.875
State:: Indiana

Sullivan is a city located in Sullivan County, Indiana. Sullivan has a 2025 population of 4,199. It is also the county seat of Sullivan County. Sullivan is currently declining at a rate of -0.28% annually and its population has decreased by -1.39% since the most recent census, which recorded a population of 4,258 in 2020.

The average household income in Sullivan is $52,074 with a poverty rate of 20.61%.The median age in Sullivan is 32.9 years: 25.3 years for males, and 35.9 years for females.

Demographics

The racial composition of Sullivan includes 92.99% White, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,952	92.99%
Two or more races	265	6.24%
Other race	29	0.68%
Black or African American	4	0.09%

Sullivan Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sullivan's average per capita income is $32,045. Household income levels show a median of $44,313. The poverty rate stands at 20.61%.

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	$68,955	-
Families	$53,790	$58,856
Households	$44,313	$52,074
Non Families	$29,482	$35,450

$32,045

Average Income

$44,313

Median Household Income

20.61%

Poverty Rate