Islip, NY vs Mattydale, NY

The cost of living difference between Islip, NY and Mattydale, NY is dramatic. Mattydale is 93% cheaper than Islip, a gap that translates to thousands of dollars per year in household expenses. Islip has a cost index of 146 while Mattydale sits at 76, 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 Islip is $2,192/month compared to $1,073/month in Mattydale — a 104% difference. Home values follow the same pattern: Mattydale is more affordable at $116,100 median vs $486,900.

Median household income in Islip is $122,596 compared to $67,672 in Mattydale (+81.2%). The higher salaries in Islip partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Islip spend roughly 21.5% of their income on rent, more than the 19% in Mattydale.

Climate-wise, Islip is notably warmer with an average of 53.1°F compared to 48.5°F in Mattydale. Islip receives more rainfall at 46" per year compared to 39.9" in Mattydale.