Hamilton County Flag

Hamilton County

State:
Illinois
County Seat:
McLeansboro

Hamilton County's estimated 2025 population is 7,771 with a growth rate of -0.89% in the past year according to the most recent United States census data. Hamilton County is the 89th largest county in Illinois. The 2010 population was 8,446 and has seen a growth of -7.99% since that time.

7,771
Total Population
18
Population Density (miĀ²)
89
Population Rank (State)
-70 -0.89%
Annual Population Growth

Hamilton County Population

Hamilton County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Hamilton County includes 96.01% White, and smaller percentages for Two or more races, Asian, other race, Native Hawaiian or Pacific Islander, Black or African American, Native American and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Native Hawaiian or Pacific Islander

Black or African American

Native American

Race
Population
Percentage (of total)
White7,65496.01%
Two or more races1652.07%
Asian690.87%
Other race390.49%
Native Hawaiian or Pacific Islander370.46%
Black or African American40.05%
Native American40.05%

Hamilton County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hamilton County's average per capita income is $46,267. Household income levels show a median of $61,520. The poverty rate stands at 12.54%.

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$100,469-
Families$75,333$105,054
Households$61,520$85,365
Non Families$35,326$49,654

$46,267

Average Income

$61,520

Median Household Income

12.54%

Poverty Rate