Millbrook township

County:: Kendall County
County Seat:: No
Area (mi²):: 36.535
State:: Illinois

Millbrook township is located in Kendall County, Illinois. Millbrook township has a 2025 population of 391. Millbrook township is currently declining at a rate of -0.76% annually and its population has decreased by -3.93% since the most recent census, which recorded a population of 407 in 2020.

The average household income in Millbrook township is $91,825 with a poverty rate of 5.74%.The median age in Millbrook township is 50 years: 54.1 years for males, and 41.8 years for females.

Demographics

The racial composition of Millbrook township includes 99.18% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	363	99.18%
Two or more races	3	0.82%

Millbrook township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Millbrook township's average per capita income is $47,813. Household income levels show a median of $72,778. The poverty rate stands at 5.74%.

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	$95,750	-
Families	$73,942	$108,870
Households	$72,778	$91,825
Non Families	-	$23,831

$47,813

Average Income

$72,778

Median Household Income

5.74%

Poverty Rate