Population: Wikipedia (List of United States cities by population); median home price: Redfin/Zillow market data; state income tax: Tax Foundation, 2026.
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784,777 people call Seattle home. That scale — a mid-size population in the several-hundred-thousand range — is the starting point for most of the financial decisions covered below, from which banks compete locally to how tight the housing market runs. Washington taxes top earners at 9.0%, one of the steepest state rates in the country, which makes tax-advantaged retirement accounts unusually valuable for Seattle residents.
Home prices in Seattle — $865,000 at the median — sit comfortably above the national average, pushing many buyers toward 30-year fixed loans with smaller down payments just to get in the door. What follows is Seattle-specific: local banks, local tax rules, and local real estate data, not a copy-paste of national advice.