Cost of Living in Sammamish
Sammamish runs genuinely expensive, with a cost-of-living index of 179 (1.8x the national average) and a median home value around $1.41M-$1.5M -- offset by exceptionally high household incomes and Washington's no state income tax.
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Learn moreA genuinely high cost of living, matched by genuinely high incomes
Sammamish's cost-of-living index ran 179, roughly 1.8x the national average -- but median household income ran $239,690-$245,694 depending on source, among the highest in Washington, meaningfully offsetting the high cost base for many residents.
Housing: a real, disclosed price range
Sammamish's median property value ran around $1.41M (2024 data) against a separately cited $1.5M recent median sale price -- both disclosed rather than reconciled given the different reference periods.
Washington's no income tax and Sammamish's combined sales tax
Washington levies no state personal income tax. Sammamish's combined sales tax rate runs an estimated 10.1%, slightly below the Bellevue/Kirkland/Redmond urban-core rate, consistent with typical King County suburban patterns -- confirm the current precise rate for a specific address.
King County's property tax structure applies
Sammamish shares King County's countywide average effective property tax rate (~0.83%), the highest of Washington's 39 counties -- see taxes for the full breakdown.
Key takeaways
- Sammamish's cost-of-living index (179) runs 1.8x the national average, offset by median household income among the highest in Washington ($239,690-$245,694).
- Housing carries a real, disclosed $1.41M-$1.5M price range depending on source and period.
- Washington's no state income tax and Sammamish's roughly 10.1% combined sales tax apply to residents.
- King County's property tax structure (highest effective rate in Washington) and the statewide capital gains excise tax both apply.
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