Millbrook, IL
Population 298 · Illinois
About Millbrook, IL
Millbrook is a small community located in Illinois with a population of 298 residents according to the latest US Census Bureau American Community Survey data. The median household income is $128,750 per year, which is 71% above the national median of $75,149. The median age of 38.9 years is close to the US median age of 38.9 years.
Housing Market Overview
The housing market in Millbrook features a median home value of $350,000, which is 43% above the national median of $244,900. This positions Millbrook in a moderately priced market relative to the rest of the country. Median monthly rent is $1,100, 5% below the national average of $1,163/month. Of the 107 total housing units, 94% are owner-occupied (96 units) and 6% are renter-occupied (6 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Millbrook shows an unemployment rate of 2.6%, which is lower than the national rate of 3.7%, indicating a relatively strong job market. The poverty rate stands at 6.7%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in Millbrook have an average one-way commute time of 38.6 minutes, suggesting many residents commute to jobs in a nearby metro area.
Education & Demographics
42.1% of Millbrook residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This is in line with national trends in educational attainment. The community's demographic composition includes 0.7% White, 0.7% Hispanic or Latino, 0.0% Black or African American, and 0.0% Asian residents, with 0.3% of the population being foreign-born.
Cost of Living in Millbrook, IL
Compared to national averages, Millbrook has a median household income of $128,750 (71% above the national median of $75,149). Home values average $350,000, which is 43% above the national median. Monthly rent at $1,100 is 5% below the US average of $1,163. Within Illinois, Millbrook's income is 72% above the state average of $75,072, and home values are 111% above the state median of $165,779.
Why Live in Millbrook, IL?
Millbrook offers a strong local economy with a median household income of $128,750, well above the national average, and rent that’s lower than the national average at $1,100/month, and a strong job market with an unemployment rate of just 2.6%. Additionally, the city features a well-educated community where 42.1% of residents hold a bachelor’s degree or higher, and a low poverty rate of 6.7%, better than the national average.
Millbrook has a population of 298 with a median age of 38.9 years. Compare Millbrook with other cities to see how it stacks up, or explore all cities in Illinois.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Millbrook
What is the population of Millbrook, IL?
The population of Millbrook, IL is 298 according to the latest US Census Bureau American Community Survey estimates. This makes it a small community in Illinois.
What is the median household income in Millbrook?
The median household income in Millbrook, IL is $128,750 per year, which is 71% above the national median of $75,149.
What is the median home value in Millbrook?
The median home value in Millbrook, IL is $350,000, which is 43% above the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Millbrook?
The median monthly rent in Millbrook, IL is $1,100, which is 5% below the national average of $1,163/month.
What is the unemployment rate in Millbrook?
The unemployment rate in Millbrook, IL is 2.6%, compared to the national average of 3.7%. This lower-than-average rate suggests a relatively healthy local job market.
Is Millbrook, IL a good place to live?
Millbrook offers above-average incomes, a competitive housing market, and a strong job market. With a population of 298 and a median age of 38.9, the city appeals to a broad range of residents.
How educated is Millbrook, IL?
42.1% of residents in Millbrook aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This above-average educational attainment often reflects a knowledge-based local economy.
What is the cost of living in Millbrook?
Key cost-of-living indicators for Millbrook, IL: median home value is $350,000 (43% above national), median rent is $1,100/month, and median household income is $128,750. The home-value-to-income ratio is 2.7x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in Millbrook?
The poverty rate in Millbrook, IL is 6.7%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is Millbrook, IL?
Millbrook's population is 0.7% White, 0.7% Hispanic or Latino, 0.0% Black or African American, 0.0% Asian, and 0.0% two or more races. 0.3% of residents are foreign-born.