States › Illinois › Oak Brook

Is Oak Brook, IL expensive to live in?

CheapRent takes 17 cents of every $1 people earn here.
🏠 Rent per month (2026)$2,63350% higher than U.S. average
💵 Families earn per year (2026)$189,676about $15,806/month · 118% higher than U.S. average
🔑 House price$903,200171% higher than U.S. average

Rent is higher than in 88% of U.S. cities. Household incomes are higher than in 96% of U.S. cities. A typical house costs about 4.8 years of household income. Commutes are long, about 31.5 minutes each way. Most homes (91.1%) are owned, so rentals can be hard to find. It is a highly educated city: 66.4% of adults have a college degree.

How much money do I need?

To rent here comfortably, you should earn about $105,320 a year. That is $51 an hour at a full-time job.

Is rent cheaper than other Illinois cities?

No. Rent here is more expensive than in most of Illinois. It is number 313 of 334 cities from cheapest to most expensive.

Oak Brook
$2,633
Hillside
$1,460
Island Lake
$2,072
Lincolnshire
$3,161
Princeton
$991
Rockton
$1,079
Silvis
$1,067

How much do households earn in Oak Brook?

Under $25k
7.4%
$25k–50k
7.7%
$50k–100k
18.6%
$100k–150k
16.8%
$150k+
44.3%

Share of households by yearly income. 61.0% of households earn $100,000 or more.

How expensive is Oak Brook overall?

Everyday prices in Illinois overall are same as the U.S. average (index 100.0, U.S. = 100).

Housing
94
Goods (food, clothes…)
104
Utilities
85
Other services
100
U.S. average
100

Source: U.S. Bureau of Economic Analysis, Regional Price Parities 2024. City-level data is not published for Oak Brook, so the Illinois figure is shown.

Taxes and bills in Oak Brook

🏛️ Property tax$10,000+a year · 1.11% of home value · U.S. $3,119
⚡ Electric bill$183a month (typical) · U.S. $156

Life in Oak Brook

Commute to work31.5 minU.S.: 26.4 min
College degree66.4%U.S.: 35.7%
Own their home91.1%U.S.: 65.2%
Below poverty line6.6%U.S.: 12.5%
Unemployment10%U.S.: 5.2%

Is it cheaper to rent or buy in Oak Brook?

Renting is cheaper right now: about $3,634 a month less.

Renting
$2,633
Owning
$6,267

Owning assumes a typical $903,200 home, 10% down, a 30-year loan at 6.5% and about 1.5% a year for taxes and insurance. You would also need $90,320 for the down payment.

Frequently asked questions

What is the average rent in Oak Brook, IL?

Renting in Oak Brook costs a median of about $2,633 a month in 2026, including utilities. The Illinois median is $1,517.

How much do I need to make to live in Oak Brook?

To keep rent under 30% of income, you need about $105,320 a year, or $51 an hour at a full-time job.

Is Oak Brook cheap or expensive?

Oak Brook is rated Cheap: rent takes 16.7% of the typical household income of $189,676. It ranks 313th cheapest of 334 Illinois cities we track.

How much are property taxes in Oak Brook?

The median homeowner in Oak Brook pays $10,000+ a year in property taxes, about 1.11% of the median home value.

Is Oak Brook more expensive than the national average?

Overall prices in Illinois are same as the U.S. average, according to the U.S. Bureau of Economic Analysis.

How much does a house cost in Oak Brook?

The median home value in Oak Brook is $903,200, about 4.8 times the typical yearly household income.

8,056 people live in Oak Brook. Numbers are typical (middle) values.