Lenzburg township

County:: St. Clair County
County Seat:: No
Area (mi²):: 28.907
State:: Illinois

Lenzburg township is located in St. Clair County, Illinois. Lenzburg township has a 2025 population of 901. Lenzburg township is currently declining at a rate of -0.99% annually and its population has decreased by -5.06% since the most recent census, which recorded a population of 949 in 2020.

The average household income in Lenzburg township is $71,331 with a poverty rate of 12.24%. The median age in Lenzburg township is 32.6 years: 25.3 years for males, and 42.9 years for females.

Demographics

The racial composition of Lenzburg township includes 98.38% White, and smaller percentages for Two or more races, 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	1,095	98.38%
Two or more races	17	1.53%
Black or African American	1	0.09%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Lenzburg township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lenzburg township's average per capita income is $49,000. Household income levels show a median of $56,176. The poverty rate stands at 12.24%.

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
Families	$81,607	$92,798
Married Families	$81,429	-
Households	$56,176	$71,331
Non Families	$30,909	$35,074

$49,000

Average Income

$56,176

Median Household Income

12.24%

Poverty Rate