Decatur, IL vs Westmont, IL

The cost of living difference between Decatur, IL and Westmont, IL is dramatic. Decatur is 42.9% cheaper than Westmont, a gap that translates to thousands of dollars per year in household expenses. Decatur has a cost index of 62 while Westmont sits at 109, 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 $1,427/month in Westmont — a 44% difference. Home values follow the same pattern: Decatur is more affordable at $97,300 median vs $369,100.

Median household income in Decatur is $50,809 compared to $83,622 in Westmont (-39.2%). The higher salaries in Westmont partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Decatur spend roughly 18.8% of their income on rent, less than the 20.5% in Westmont.