Affton, MO vs Chesterfield, MO

The cost of living difference between Affton, MO and Chesterfield, MO is dramatic. Affton is 32.7% cheaper than Chesterfield, a gap that translates to thousands of dollars per year in household expenses. Affton has a cost index of 79 while Chesterfield sits at 118, 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 Affton is $978/month compared to $1,553/month in Chesterfield — a 37% difference. Home values follow the same pattern: Affton is more affordable at $200,300 median vs $458,000.

Median household income in Affton is $77,337 compared to $133,380 in Chesterfield (-42%). While Chesterfield is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Affton spend roughly 15.2% of their income on rent, more than the 14% in Chesterfield.