Joliet, IL vs Rockford, IL

The cost of living difference between Joliet, IL and Rockford, IL is dramatic. Rockford is 33.2% cheaper than Joliet, a gap that translates to thousands of dollars per year in household expenses. Joliet has a cost index of 94 while Rockford sits at 70, 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 Joliet is $1,237/month compared to $954/month in Rockford — a 30% difference. Home values follow the same pattern: Rockford is more affordable at $120,900 median vs $248,600.

Median household income in Joliet is $88,026 compared to $53,328 in Rockford (+65.1%). While Joliet is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Joliet spend roughly 16.9% of their income on rent, less than the 21.5% in Rockford.

Climate-wise, both cities share similar average temperatures (49.4°F vs 49.4°F). Rockford receives more rainfall at 37.2" per year compared to 33.8" in Joliet.