Williamson

County:: Macoupin County
County Seat:: No
Area (mi²):: 1.171
State:: Illinois

Williamson is a village located in Macoupin County, Illinois. Williamson has a 2025 population of 174. Williamson is currently declining at a rate of -0.57% annually and its population has decreased by -3.87% since the most recent census, which recorded a population of 181 in 2020.

The average household income in Williamson is $62,997 with a poverty rate of 17.09%. The median age in Williamson is 55 years: 54.5 years for males, and 60.1 years for females.

Demographics

The racial composition of Williamson includes 95.12% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	156	95.12%
Two or more races	8	4.88%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Williamson Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamson's average per capita income is $34,167. Household income levels show a median of $56,667. The poverty rate stands at 17.09%.

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	$86,250	-
Families	$57,083	$72,343
Households	$56,667	$62,997
Non Families	-	$42,576

$34,167

Average Income

$56,667

Median Household Income

17.09%

Poverty Rate