Collinsville, IL vs Decatur, IL

There is a significant gap in the cost of living between these two cities. Decatur is 21.5% cheaper than Collinsville. With a cost index of 62 vs 76, the difference would have a meaningful impact on a household's monthly budget. Someone relocating from Decatur to Collinsville should plan for substantially higher expenses across most categories.

On the housing front, median rent in Collinsville is $979/month compared to $796/month in Decatur — a 23% difference. Home values follow the same pattern: Decatur is more affordable at $97,300 median vs $157,700.

Median household income in Collinsville is $65,170 compared to $50,809 in Decatur (+28.3%). 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 18.8% in Decatur.