Millbrook Flag

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 2026 population of 285. Millbrook is currently growing at a rate of 0.71% annually and its population has increased by 3.26% since the most recent census, which recorded a population of 276 in 2020.

The median household income in Millbrook is $137,560 with a poverty rate of 4.53%. The median age in Millbrook is 55.3 years: 53 years for males, and 55.4 years for females. For every 100 females there are 100.8 males.

285
Total Population
154
Density (mi²)
2 0.71%
Growth

Millbrook Population

Millbrook Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202628520.71%
202528310.35%
202428220.71%
202328000%
202228020.72%
202127820.72%
202027600%
2019323-3-0.92%
201832620.62%
201732420.62%
201632230.94%
201531920.63%
201431730.96%
201331420.64%
201231220.65%
2011310-25-7.46%
201030710.33%

Median Age

Overall: 55.3 years
Female: 55.4 years
Male: 53 years

Millbrook Adults

There are 185 adults, (53 of whom are seniors) in Millbrook.

Sex Ratio

Female: 121 (49.8%)
Male: 122 (50.2%)

Demographics

The racial composition of Millbrook includes 93.42% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White22793.42%
Two or more races124.94%
Other race41.65%
Race
Population ↓
Percentage (of total)
Other race41.65%
Race
Population ↓
Percentage (of total)
White22793.42%
Two or more races124.94%

Millbrook Marital Status

Economics and Income Statistics

Millbrook 's average per capita income is $70,417. Household income levels show a median of $137,560. The poverty rate stands at 4.53%.

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$138,690-
Families$138,512$136,274
Households$137,560$123,710
Non Families$63,750$74,835

$70,417

Average Income

$137,560

Median Household Income

4.53%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)