Sammamish, WA vs Tumwater, WA

The cost of living difference between Sammamish, WA and Tumwater, WA is dramatic. Tumwater is 81.6% cheaper than Sammamish, a gap that translates to thousands of dollars per year in household expenses. Sammamish has a cost index of 224 while Tumwater sits at 123, 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 Sammamish is $2,728/month compared to $1,654/month in Tumwater — a 65% difference. Home values follow the same pattern: Tumwater is more affordable at $438,000 median vs $1,240,300.

Median household income in Sammamish is $227,273 compared to $93,635 in Tumwater (+142.7%). While Sammamish is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Sammamish spend roughly 14.4% of their income on rent, less than the 21.2% in Tumwater.

Climate-wise, Sammamish is notably warmer with an average of 53.6°F compared to 50.5°F in Tumwater. Tumwater receives more rainfall at 50.6" per year compared to 34.7" in Sammamish.