Ballwin, MO vs Union, MO

The cost of living difference between Ballwin, MO and Union, MO is dramatic. Union is 38.5% cheaper than Ballwin, a gap that translates to thousands of dollars per year in household expenses. Ballwin has a cost index of 104 while Union sits at 75, 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 Ballwin is $1,386/month compared to $847/month in Union — a 64% difference. Home values follow the same pattern: Union is more affordable at $199,100 median vs $353,400.

Median household income in Ballwin is $121,170 compared to $71,760 in Union (+68.9%). While Ballwin is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Ballwin spend roughly 13.7% of their income on rent, less than the 14.2% in Union.