O'Fallon, MO vs Wentzville, MO

O'Fallon, MO and Wentzville, MO have a very similar cost of living, with only a 4.5% difference in their overall index. O'Fallon scores 101 while Wentzville 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 O'Fallon is $1,400/month compared to $1,264/month in Wentzville — a 11% difference. Home values follow the same pattern: Wentzville is more affordable at $302,700 median vs $305,100.

Median household income in O'Fallon is $107,203 compared to $111,409 in Wentzville (-3.8%). Wentzville offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of O'Fallon spend roughly 15.7% of their income on rent, more than the 13.6% in Wentzville.