Mercer Island, WA vs Milton, WA

The cost of living difference between Mercer Island, WA and Milton, WA is dramatic. Milton is 89.8% cheaper than Mercer Island, a gap that translates to thousands of dollars per year in household expenses. Mercer Island has a cost index of 269 while Milton 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 Mercer Island is $2,464/month compared to $1,986/month in Milton — a 24% difference. Home values follow the same pattern: Milton is more affordable at $511,000 median vs $1,884,200.

Median household income in Mercer Island is $202,359 compared to $89,804 in Milton (+125.3%). While Mercer Island is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Mercer Island spend roughly 14.6% of their income on rent, less than the 26.5% in Milton.

Climate-wise, both cities share similar average temperatures (53.8°F vs 51.9°F). Milton receives more rainfall at 42" per year compared to 36.5" in Mercer Island.