King County, WA real estate

What the numbers say

King County, WA real estate at a glance

By AstroCore · Realtor.com, US Census and Freddie Mac data

In September 2026, the median home in King County listed for $842,425, down 0.9% from a year earlier. That is 32% above the Washington median of $639,475.

Homes spent a median of 50 days on the market, slower than 46 days a year ago. That makes King County the #2 fastest-selling of 22 Washington counties we track.

Homeowners in King County pay a median of $7,114 a year in property taxes on a median home value of $859,900, an effective rate of about 0.83%. The Washington average is 0.81%, which makes King County the #34 lowest-tax of 39 counties in the state with published tax data.

Renters pay a median of $2,092 a month, and $2,257 for a two-bedroom. At today's prices a typical home costs about 34 times a year's rent, which generally favors renting over buying in the short term.

With 20% down and today's 7.24% average 30-year rate, the monthly payment on a $842,000 home here comes to about $5,525 including property tax and insurance. Lenders typically want that to be under 28% of income, which works out to roughly $237,000 a year (the median household here earns $124,746).