Lisle, IL vs Oak Brook, IL

The cost of living difference between Lisle, IL and Oak Brook, IL is dramatic. Lisle is 40.7% cheaper than Oak Brook, a gap that translates to thousands of dollars per year in household expenses. Lisle has a cost index of 116 while Oak Brook sits at 196, making this one of the more striking comparisons on our site. Relocating between these cities would require a serious reassessment of budget and lifestyle expectations.

On the housing front, median rent in Lisle is $1,540/month compared to $2,921/month in Oak Brook — a 47% difference. Home values follow the same pattern: Lisle is more affordable at $407,000 median vs $867,900.

Median household income in Lisle is $106,173 compared to $171,123 in Oak Brook (-38%). The higher salaries in Oak Brook partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Lisle spend roughly 17.4% of their income on rent, less than the 20.5% in Oak Brook.

Climate-wise, both cities share similar average temperatures (49.7°F vs 52.1°F). Oak Brook receives more rainfall at 34.4" per year compared to 33.2" in Lisle.