Mount Prospect, IL vs Ottawa, IL

The cost of living difference between Mount Prospect, IL and Ottawa, IL is dramatic. Ottawa is 51% cheaper than Mount Prospect, a gap that translates to thousands of dollars per year in household expenses. Mount Prospect has a cost index of 111 while Ottawa sits at 73, 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 Mount Prospect is $1,454/month compared to $922/month in Ottawa — a 58% difference. Home values follow the same pattern: Ottawa is more affordable at $144,500 median vs $377,000.

Median household income in Mount Prospect is $103,911 compared to $73,011 in Ottawa (+42.3%). The higher salaries in Mount Prospect partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Mount Prospect spend roughly 16.8% of their income on rent, more than the 15.2% in Ottawa.

Climate-wise, both cities share similar average temperatures (50.8°F vs 49.4°F). Ottawa receives more rainfall at 33.8" per year compared to 32.3" in Mount Prospect.