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 and multiracial populations.

Population by 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%

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