Darby, PA vs Rosemont, PA

The cost of living difference between Darby, PA and Rosemont, PA is dramatic. Darby is 40.4% cheaper than Rosemont, a gap that translates to thousands of dollars per year in household expenses. Darby has a cost index of 85 while Rosemont sits at 142, 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 Darby is $1,337/month compared to $1,678/month in Rosemont — a 20% difference. Home values follow the same pattern: Darby is more affordable at $101,900 median vs $675,100.

Median household income in Darby is $45,128 compared to $85,913 in Rosemont (-47.5%). While Rosemont is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Darby spend roughly 35.6% of their income on rent, more than the 23.4% in Rosemont. The Rosemont ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.