Hamilton, IL vs Oak Brook, IL

The cost of living difference between Hamilton, IL and Oak Brook, IL is dramatic. Hamilton is 64.6% cheaper than Oak Brook, a gap that translates to thousands of dollars per year in household expenses. Hamilton has a cost index of 69 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 Hamilton is $888/month compared to $2,921/month in Oak Brook — a 70% difference. Home values follow the same pattern: Hamilton is more affordable at $105,600 median vs $867,900.

Median household income in Hamilton is $53,487 compared to $171,123 in Oak Brook (-68.7%). 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 Hamilton spend roughly 19.9% of their income on rent, less than the 20.5% in Oak Brook.

Climate-wise, both cities share similar average temperatures (51.9°F vs 52.1°F). Hamilton receives more rainfall at 37.9" per year compared to 34.4" in Oak Brook.