Lake Cassidy, WA vs Rock Island, WA

The cost of living difference between Lake Cassidy, WA and Rock Island, WA is dramatic. Rock Island is 73.9% cheaper than Lake Cassidy, a gap that translates to thousands of dollars per year in household expenses. Lake Cassidy has a cost index of 156 while Rock Island sits at 90, 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 Lake Cassidy is $2,000/month compared to $1,094/month in Rock Island — a 83% difference. Home values follow the same pattern: Rock Island is more affordable at $255,500 median vs $683,600.

Median household income in Lake Cassidy is $115,417 compared to $55,114 in Rock Island (+109.4%). While Lake Cassidy is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Lake Cassidy spend roughly 20.8% of their income on rent, less than the 23.8% in Rock Island.

Climate-wise, both cities share similar average temperatures (51.4°F vs 51.2°F). Lake Cassidy receives more rainfall at 33.4" per year compared to 7.8" in Rock Island.