Mercer Island, WA vs Richland, WA

The cost of living difference between Mercer Island, WA and Richland, WA is dramatic. Richland is 144.4% 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 Richland sits at 110, 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 $1,397/month in Richland — a 76% difference. Home values follow the same pattern: Richland is more affordable at $401,800 median vs $1,884,200.

Median household income in Mercer Island is $202,359 compared to $92,550 in Richland (+118.6%). The higher salaries in Mercer Island partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Mercer Island spend roughly 14.6% of their income on rent, less than the 18.1% in Richland.

Climate-wise, both cities share similar average temperatures (53.8°F vs 53.3°F). Mercer Island receives more rainfall at 36.5" per year compared to 7.6" in Richland.