Collinsville, IL vs Rock Falls, IL

There is a significant gap in the cost of living between these two cities. Rock Falls is 20.5% cheaper than Collinsville. With a cost index of 63 vs 76, the difference would have a meaningful impact on a household's monthly budget. Someone relocating from Rock Falls to Collinsville should plan for substantially higher expenses across most categories.

On the housing front, median rent in Collinsville is $979/month compared to $745/month in Rock Falls — a 31% difference. Home values follow the same pattern: Rock Falls is more affordable at $82,400 median vs $157,700.

Median household income in Collinsville is $65,170 compared to $48,733 in Rock Falls (+33.7%). While Collinsville is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Collinsville spend roughly 18% of their income on rent, less than the 18.3% in Rock Falls.