Diamond, IL vs Rock Falls, IL

The cost of living difference between Diamond, IL and Rock Falls, IL is dramatic. Rock Falls is 43.5% cheaper than Diamond, a gap that translates to thousands of dollars per year in household expenses. Diamond has a cost index of 90 while Rock Falls sits at 63, 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 Diamond is $1,224/month compared to $745/month in Rock Falls — a 64% difference. Home values follow the same pattern: Rock Falls is more affordable at $82,400 median vs $211,500.

Median household income in Diamond is $60,000 compared to $48,733 in Rock Falls (+23.1%). The higher salaries in Diamond partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Diamond spend roughly 24.5% of their income on rent, more than the 18.3% in Rock Falls.