Freeport, IL vs Oak Brook, IL

The cost of living difference between Freeport, IL and Oak Brook, IL is dramatic. Freeport is 67.4% cheaper than Oak Brook, a gap that translates to thousands of dollars per year in household expenses. Freeport has a cost index of 64 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 Freeport is $760/month compared to $2,921/month in Oak Brook — a 74% difference. Home values follow the same pattern: Freeport is more affordable at $86,100 median vs $867,900.

Median household income in Freeport is $48,181 compared to $171,123 in Oak Brook (-71.8%). While Oak Brook is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Freeport spend roughly 18.9% of their income on rent, less than the 20.5% in Oak Brook.

Climate-wise, both cities share similar average temperatures (49.4°F vs 52.1°F). Freeport receives more rainfall at 37.2" per year compared to 34.4" in Oak Brook.