The median home price in Seattle is $780,000, above the national median of $420,000. With a median household income of $110,000, the price-to-income ratio is 7.1x — meaning buyers typically spend 7.1 years of gross income on the purchase price.
Property taxes in Seattle run 0.92% of assessed value. On the median home, that is $7,176 per year, or $598 per month added to your mortgage payment. This is close to the national average of 1.1%.
Washington has no state income tax, which means more of your gross salary becomes take-home pay. This effectively increases your purchasing power compared to income-tax states.
The cost of living index in Seattle is 152 (national average = 100). Expect to pay more for groceries, transportation, and services in addition to housing.