Millbrook

County:: Kendall County
County Seat:: No
Area (mi²):: 1.846
State:: Illinois

Millbrook is a village located in Kendall County, Illinois. Millbrook has a 2025 population of 282. Millbrook is currently growing at a rate of 0.36% annually and its population has increased by 1.81% since the most recent census, which recorded a population of 277 in 2020.

The average household income in Millbrook is $121,174 with a poverty rate of 6.71%. The median age in Millbrook is 38.9 years: 38.8 years for males, and 41 years for females.

Demographics

The racial composition of Millbrook includes 99.33% 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	296	99.33%
Two or more races	2	0.67%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Millbrook Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Millbrook's average per capita income is $61,406. Household income levels show a median of $128,750. The poverty rate stands at 6.71%.

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	$135,875	-
Families	$135,625	$123,950
Households	$128,750	$121,174
Non Families	$71,250	$76,668

$61,406

Average Income

$128,750

Median Household Income

6.71%

Poverty Rate