Carbondale, IL vs Mount Prospect, IL

The cost of living difference between Carbondale, IL and Mount Prospect, IL is dramatic. Carbondale is 40% cheaper than Mount Prospect, a gap that translates to thousands of dollars per year in household expenses. Carbondale has a cost index of 67 while Mount Prospect sits at 111, 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 Carbondale is $750/month compared to $1,454/month in Mount Prospect — a 48% difference. Home values follow the same pattern: Carbondale is more affordable at $124,800 median vs $377,000.

Median household income in Carbondale is $29,670 compared to $103,911 in Mount Prospect (-71.4%). While Mount Prospect is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Carbondale spend roughly 30.3% of their income on rent, more than the 16.8% in Mount Prospect. The Mount Prospect ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.