Sullivan County Flag

Sullivan County

State:
Missouri
County Seat:
Milan

Sullivan County's estimated 2025 population is 5,759 with a growth rate of -0.33% in the past year according to the most recent United States census data. Sullivan County is the 106th largest county in Missouri. The 2010 population was 6,737 and has seen a growth of -14.52% since that time.

5,759
Total Population
9
Population Density (mi²)
106
Population Rank (State)
-19 -0.33%
Annual Population Growth

Sullivan County Population

Sullivan County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Sullivan County includes 83.38% White, 5.71% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White4,92283.38%
Two or more races4417.47%
Other race3375.71%
Black or African American1462.47%
Asian440.75%
Native American130.22%

Sullivan County Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sullivan County's average per capita income is $40,598. Household income levels show a median of $55,500. The poverty rate stands at 14.74%.

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$82,700-
Families$69,043$85,396
Households$55,500$68,319
Non Families$35,324$39,962

$40,598

Average Income

$55,500

Median Household Income

14.74%

Poverty Rate