Derby, CT vs Old Greenwich, CT

The cost of living difference between Derby, CT and Old Greenwich, CT is dramatic. Derby is 64.4% cheaper than Old Greenwich, a gap that translates to thousands of dollars per year in household expenses. Derby has a cost index of 99 while Old Greenwich sits at 278, 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 Derby is $1,453/month compared to $3,501/month in Old Greenwich — a 59% difference. Home values follow the same pattern: Derby is more affordable at $242,300 median vs $1,668,200.

Median household income in Derby is $76,263 compared to $250,001 in Old Greenwich (-69.5%). While Old Greenwich is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Derby spend roughly 22.9% of their income on rent, more than the 16.8% in Old Greenwich.