O'Fallon, IL vs Summit, IL

Summit is moderately more affordable than O'Fallon, with a 12.4% lower cost of living index. O'Fallon scores 96 compared to 85 for Summit, where the US average is 100. This difference means residents of O'Fallon can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in O'Fallon is $1,312/month compared to $1,012/month in Summit — a 30% difference. Home values follow the same pattern: Summit is more affordable at $224,800 median vs $274,100.

Median household income in O'Fallon is $102,793 compared to $60,417 in Summit (+70.1%). While O'Fallon is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of O'Fallon spend roughly 15.3% of their income on rent, less than the 20.1% in Summit.

Climate-wise, O'Fallon is notably warmer with an average of 57.7°F compared to 52.1°F in Summit. O'Fallon receives more rainfall at 43.4" per year compared to 34.4" in Summit.