King County The county's largest cities are Seattle and Bellevue. The average effective property tax rate in King County is 0.85%. It's also the county with the state's highest median annual property tax payment at $6,476. Rates in many King County cities have been falling as home values have been increasing.
At least 61 years of age or older. Retired from regular gainful employment due to a disability. Veteran of the armed forces of the United States receiving compensation from the United States Department of Veterans Affairs at one of the following: Combined service-connected evaluation rating of 80% or higher.