Millbrook

Population: 298
Median household income: $128,750
Median home value: $350,000

Located in Kendall County, Illinois, Millbrook is a community with a population of 298. Its median household income of $128,750 runs above the Kendall County figure of $110,474.

Between 2019 and 2023, Millbrook's population declined 27.7% from 412 to 298, while its median home value rose 38.7% from $252,300 to $350,000.

The median resident is 38.9 years old. The largest age group is 5 to 17, 23.8% of residents.

Demographics

ACS 2019–2023

Population: 298
Median age: 38.9 yrs
Median household income: $128,750
Median home value: $350,000
Median gross rent: $1,100
Housing units: 107
Homeownership rate: 94.1%
Bachelor's degree or higher: 42.1%
Unemployment rate: 2.6%

Trends

ACS 5-year · 2019–2023

Population

412298

Median household income

$85,938$128,750

Median home value

$252,300$350,000

Median gross rent

$1,038$1,100

Year	Population	Median household income	Median home value	Median gross rent
2019	412	$85,938	$252,300	$1,038
2020	357	$91,875	$306,100	$1,025
2021	401	$98,125	$281,300	$1,094
2022	314	$116,875	$307,500	$1,094
2023	298	$128,750	$350,000	$1,100

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 58.1%

5 to 1723.8%

18 to 244.4%

25 to 347.4%

35 to 4413.1%

45 to 545.4%

55 to 6423.2%

65 to 7410.7%

75 and over4.0%

	Count	Share
Under 5	24	8.1%
5 to 17	71	23.8%
18 to 24	13	4.4%
25 to 34	22	7.4%
35 to 44	39	13.1%
45 to 54	16	5.4%
55 to 64	69	23.2%
65 to 74	32	10.7%
75 and over	12	4.0%

Race & ethnicity

	Count	Share
White (non-Hispanic)	294	98.7%
Black or African American	0	0.0%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	2	0.7%
Hispanic or Latino (any race)	2	0.7%

Educational attainment (age 25+)

No high school diploma3.7%

High school graduate15.3%

Some college or associate's38.9%

Bachelor's degree25.8%

Graduate or professional degree16.3%

	Count	Share
No high school diploma	7	3.7%
High school graduate	29	15.3%
Some college or associate's	74	38.9%
Bachelor's degree	49	25.8%
Graduate or professional degree	31	16.3%

Commute to work

Mean travel time to work: 39 min

Drove alone92.4%

Carpooled2.8%

Public transit0.0%

Walked2.1%

Bicycle0.0%

Worked from home2.1%

Other means0.7%

How workers get to work

	Count	Share
Drove alone	133	92.4%
Carpooled	4	2.8%
Public transit	0	0.0%
Walked	3	2.1%
Bicycle	0	0.0%
Worked from home	3	2.1%
Other means	1	0.7%

Travel time

	Count	Share
Under 15 min	10	7.1%
15 to 29 min	23	16.3%
30 to 44 min	31	22.0%
45 to 59 min	61	43.3%
60+ min	16	11.3%

Households

Average household size: 2.92
Poverty rate: 6.7% (20 of 298)

	Count	Share
Family households	80	78.4%
Nonfamily households	22	21.6%

Housing

Median year structure built: 1985

Occupancy

	Count	Share
Occupied	102	95.3%
Vacant	5	4.7%

Tenure (of occupied units)

	Count	Share
Owner-occupied	96	94.1%
Renter-occupied	6	5.9%

1-unit, detached97.2%

1-unit, attached0.0%

2 to 4 units2.8%

5 to 19 units0.0%

20 or more units0.0%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	104	97.2%
1-unit, attached	0	0.0%
2 to 4 units	3	2.8%
5 to 19 units	0	0.0%
20 or more units	0	0.0%
Mobile home & other	0	0.0%

Geography

Place GEOID: 1749100
Type (LSAD): 47
Land area: 1.85 sq mi
Water area: 0 sq mi
Center point: 41.6071, -88.5454