Louisville

County:: Clay County
County Seat:: Yes
Area (mi²):: 0.828
State:: Illinois

Louisville is a village located in Clay County, Illinois. Louisville has a 2025 population of 1,102. It is also the county seat of Clay County. Louisville is currently declining at a rate of -0.72% annually and its population has decreased by -3.67% since the most recent census, which recorded a population of 1,144 in 2020.

The average household income in Louisville is $58,089 with a poverty rate of 28.59%. The median age in Louisville is 38.6 years: 30.3 years for males, and 42.5 years for females.

Demographics

The racial composition of Louisville includes 97.05% White, and smaller percentages for Black or African American, Two or more races, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	1,250	97.05%
Black or African American	34	2.64%
Two or more races	4	0.31%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Louisville Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Louisville's average per capita income is $37,868. Household income levels show a median of $44,318. The poverty rate stands at 28.59%.

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	$80,431	-
Families	$64,821	$69,981
Households	$44,318	$58,089
Non Families	$30,536	$37,761

$37,868

Average Income

$44,318

Median Household Income

28.59%

Poverty Rate