Cost of living in Sammamish, WA — Housing, Rent & Index

The median home value in Sammamish, WA is $1,638,223 as of 2026-04. That places Sammamish above the US average for housing cost, with a cost index of approximately 461 versus a national baseline of 100.

Over the past 12 months, the median home value in Sammamish has fallen 5.1%, and over the past five years it has averaged +6.6% annual growth. The current price sits -10.1% from its 5-year peak in 2022-06.

Renters pay a median of $3,300 per month in Sammamish. Rents have changed +0.1% over the last year and averaged +5.2% per year over five years.

Beyond housing, day-to-day costs in Sammamish are shaped by state and local taxes, utility rates, transportation, and groceries. This page focuses on the housing component, which is the largest single line in most household budgets and the easiest to compare across cities using consistent national data.