Decatur, IL vs Northbrook, IL

The cost of living difference between Decatur, IL and Northbrook, IL is dramatic. Decatur is 60.8% cheaper than Northbrook, a gap that translates to thousands of dollars per year in household expenses. Decatur has a cost index of 62 while Northbrook sits at 159, 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 Decatur is $796/month compared to $2,334/month in Northbrook — a 66% difference. Home values follow the same pattern: Decatur is more affordable at $97,300 median vs $644,100.

Median household income in Decatur is $50,809 compared to $155,321 in Northbrook (-67.3%). While Northbrook is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Decatur spend roughly 18.8% of their income on rent, more than the 18% in Northbrook.