Carpentersville, IL vs Decatur, IL

The cost of living difference between Carpentersville, IL and Decatur, IL is dramatic. Decatur is 56% cheaper than Carpentersville, a gap that translates to thousands of dollars per year in household expenses. Carpentersville has a cost index of 97 while Decatur sits at 62, 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 Carpentersville is $1,420/month compared to $796/month in Decatur — a 78% difference. Home values follow the same pattern: Decatur is more affordable at $97,300 median vs $225,200.

Median household income in Carpentersville is $86,327 compared to $50,809 in Decatur (+69.9%). While Carpentersville is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Carpentersville spend roughly 19.7% of their income on rent, more than the 18.8% in Decatur.