Markham, IL vs O'Fallon, IL

Markham, IL and O'Fallon, IL have a very similar cost of living, with only a 1.5% difference in their overall index. Markham scores 97 while O'Fallon scores 96 on the cost of living index, where 100 represents the national average. The day-to-day expenses for residents in both cities are comparable, though differences emerge when looking at specific categories.

On the housing front, median rent in Markham is $1,689/month compared to $1,312/month in O'Fallon — a 29% difference. Interestingly, home values tell a different story: while O'Fallon has cheaper rent, Markham actually has lower median home values ($119,500 vs $274,100).

Median household income in Markham is $52,364 compared to $102,793 in O'Fallon (-49.1%). O'Fallon offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Markham spend roughly 38.7% of their income on rent, more than the 15.3% in O'Fallon. The O'Fallon ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.

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