St. Charles, IL vs Waterloo, IL

The cost of living difference between St. Charles, IL and Waterloo, IL is dramatic. Waterloo is 52% cheaper than St. Charles, a gap that translates to thousands of dollars per year in household expenses. St. Charles has a cost index of 120 while Waterloo sits at 79, 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 St. Charles is $1,788/month compared to $873/month in Waterloo — a 105% difference. Home values follow the same pattern: Waterloo is more affordable at $237,900 median vs $369,700.

Median household income in St. Charles is $115,350 compared to $92,005 in Waterloo (+25.4%). St. Charles does offer higher incomes, but the salary premium barely offsets the higher cost of living, leaving residents with a tighter budget. Looking at affordability, residents of St. Charles spend roughly 18.6% of their income on rent, more than the 11.4% in Waterloo.

Climate-wise, Waterloo is notably warmer with an average of 56.5°F compared to 49.7°F in St. Charles. Waterloo receives more rainfall at 40.8" per year compared to 33.2" in St. Charles.