Millbrook, Illinois Population 2022

265
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Millbrook is a city located in Kendall County Illinois. With a 2020 population of 265, it is the 1092nd largest city in Illinois and the 22670th largest city in the United States. Millbrook is currently declining at a rate of -2.21% annually and its population has decreased by -4.33% since the most recent census, which recorded a population of 277 in 2020. Spanning over 2 miles, Millbrook has a population density of 144 people per square mile.

The average household income in Millbrook is $104,150 with a poverty rate of 9.32%. The median rental costs in recent years comes to $1,025 per month, and the median house value is $306,100. The median age in Millbrook is 36.4 years, 36.9 years for males, and 35.5 years for females.

Millbrook Demographics

According to the most recent ACS, the racial composition of Millbrookwas:

  • White: 99.16%
  • Two or more races: 0.84%
  • Black or African American: 0.00%
  • Native American: 0.00%
  • Asian: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Other race: 0.00%
The current population of Millbrook, Illinois is 265 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 277.

Millbrook, Illinois Population 2022

Population by Race

Race Population Percentage
White35499.16%
Two or More Races30.84%
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Millbrook Population by Race

Millbrook Population Pyramid 2022

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Millbrook Median Age

41.5


Total

41.6


Male

38.9


Female

Millbrook Adults

There are 272 adults, (36 of whom are seniors) in Millbrook.

Millbrook Age Dependency

Age Dependency Ratio

15.3

Old Age Dependency Ratio

36

Child Dependency Ratio

Millbrook Sex Ratio

Female

203

56.86%

Male

154

43.14%

Millbrook Population by Age

Millbrook Renter vs Owner Occupied by Household Type

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Millbrook Household Types

Type Owner Renter
Male100%0%
Married96.4%3.6%
All90.1%9.9%
Female75%25%
Non Family71.4%28.6%

90.1%

Rate of Home Ownership

Millbrook Households and Families

Type Count Average Size Owned
All1212.9590.1
Married843.1596.4
Male57.2100
Female4375
Non Family281.5771.4

3.19

Average Family Size

2.95

Average Household Size

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Millbrook Households by Type

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Education Attained Count Percentage
Less Than 9th Grade0.00%
9th to 12th Grade93.60%
High School Graduate7730.80%
Some College5923.60%
Associates Degree2610.40%
Bachelors Degree5722.80%
Graduate Degree228.80%
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Millbrook Educational Attainment by Sex (over 25)

Millbrook Educational Attainment by Race

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Race Total High School Bachelors
White24523679
2+ Races33
Hispanic22

The highest rate of high school graduation is among 2+ races people with a rate of 100.00%.

The highest rate of bachelors degrees is among white people with a rate of 32.24%.

Millbrook Educational Attainment by Race

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Name Average Male Female
Overall$49,861$61,071$33,438
Less Than 9th Grade$$$
High School Graduate$47,500$57,917$
Some College$51,125$52,361$33,750
Bachelors Degree$$87,500$
Graduate Degree$80,833$81,458$38,750

$49,861

Average Earnings

$61,071

Average Male

$33,438

Average Female

Millbrook Earnings by Educational Attainment

Millbrook Language by Age

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Millbrook Language

98.82% of Millbrook residents speak only English, while 1.18% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.18% of the population.

Millbrook Language

Millbrook Poverty by Race

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Name Total In Poverty Poverty Rate
White346308.67%
OtherNaN%
Hispanic5360.00%

9.32%

Overall Poverty Rate

10.60%

Male Poverty Rate

8.37%

Female Poverty Rate

Poverty in Millbrook

The race most likely to be in poverty in Millbrook is White, with 8.67% below the poverty level.

The race least likely to be in poverty in Millbrook is Hispanic, with 60.00% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.00%. Among those working part-time, it was 4.82%, and for those that did not work, the poverty rate was 20.22%.

Millbrook Poverty

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Name Poverty
Less Than 9th Grade55.56%
High School7.79%
Some College3.53%
Bachelors or Greater1.27%

Millbrook Poverty Rate by Education

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Rate Poverty
Male Employed0.00%
Male Unemployed55.56%
Female Employed0.00%
Female Unemployed0.00%

Millbrook Poverty Rate by Employment Status and Sex

Millbrook Income by Household Type

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Name Median Mean
Households$91,875$108,690
Families$112,569$116,867
Married Families$112,917-
Non Families$63,750$65,600
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Income by Household Type

Millbrook Marital Status

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Marriage Rates

60.1%

Overall Marriage Rate

63.9%

Male Marriage Rate

57.4%

Female Marriage Rate

Millbrook Married by Age and Sex

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Millbrook Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Millbrook Marital Status by Race

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Millbrook Marital Status

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9

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Second Gulf War1
First Gulf War3
Vietnam4
Korea
World War II

Millbrook Veterans by War

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Age Group Veterans
18 to 341
35 to 542
55 to 641
65 to 743
75+2

Millbrook Veterans by Age

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Name Veterans % of Total
White93.35%
Hispanic120.00%

Millbrook Veterans by Race

Millbrook Veterans by Education

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0.00%

Veteran Poverty Rate

0.00%

Veteran Disability Rate

Millbrook Veterans by Education

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64.6%

Labor Force Participation

59.3%

Employment Rate

8.2%

Unemployment Rate

Millbrook Employment by Age

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Millbrook Employment by Race

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Millbrook Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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80.95%

Born in Millbrook

99.72%

Native Born

0.28%

Foreign Born

0.00%

Non Citizen

0.28%

Naturalized

Place of Birth

99.72% of Millbrook residents were born in the United States, with 80.95% having been born in Illinois. 0.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Millbrook Place of Birth

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
20103350.00%
2011329-6-1.79%
2012323-6-1.82%
2013317-6-1.86%
2014311-6-1.89%
2015305-6-1.93%
2016299-6-1.97%
2017293-6-2.01%
2018287-6-2.05%
2019281-6-2.09%
2020277-4-1.42%
2021271-6-2.17%
2022265-6-2.21%

Millbrook Population by Year