Knollwood, IL vs Northfield, IL

The cost of living difference between Knollwood, IL and Northfield, IL is dramatic. Knollwood is 37.6% cheaper than Northfield, a gap that translates to thousands of dollars per year in household expenses. Knollwood has a cost index of 119 while Northfield sits at 191, 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 Knollwood is $1,733/month compared to $2,917/month in Northfield — a 41% difference. Home values follow the same pattern: Knollwood is more affordable at $372,500 median vs $807,700.

Median household income in Knollwood is $133,452 compared to $180,492 in Northfield (-26.1%). The higher salaries in Northfield partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Knollwood spend roughly 15.6% of their income on rent, less than the 19.4% in Northfield.

Climate-wise, both cities share similar average temperatures (48.3°F vs 50.8°F). Knollwood receives more rainfall at 35.3" per year compared to 32.3" in Northfield.