Lanark

County:: Carroll County
County Seat:: No
Area (mi²):: 1.121
State:: Illinois

Lanark is a city located in Carroll County, Illinois. Lanark has a 2025 population of 1,444. Lanark is currently declining at a rate of -0.76% annually and its population has decreased by -3.6% since the most recent census, which recorded a population of 1,498 in 2020.

The average household income in Lanark is $79,943 with a poverty rate of 14.29%. The median age in Lanark is 36.9 years: 36.2 years for males, and 38.3 years for females.

Demographics

The racial composition of Lanark includes 94.77% White, and smaller percentages for Black or African American, other race, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,431	94.77%
Two or more races	57	3.77%
Black or African American	13	0.86%
Other race	9	0.6%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Lanark Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lanark's average per capita income is $50,100. Household income levels show a median of $66,250. The poverty rate stands at 14.29%.

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	$117,778	-
Families	$97,000	$95,926
Households	$66,250	$79,943
Non Families	$38,000	$43,309

$50,100

Average Income

$66,250

Median Household Income

14.29%

Poverty Rate