Seattle Trendlines

Friday, September 4, 2026·Charts every weekday

What King County sellers listed, August 2026

housing
Published

September 4, 2026

New residential listings added in King County each month, 2016 to August 2026, a hard seasonal saw-tooth peaking each spring, ending at 2,512.

King County sellers put 2,512 new listings on the market in August 2026, up 12.3% from the same month a year earlier. The year-over-year comparison is the only fair one here: this series has a spring peak and a December trough every single year, so a fall from June to November says nothing except that it got dark.

New listings are the supply side of the inventory number — what sellers add, rather than what is sitting unsold. The two move apart when demand shifts: inventory can climb on flat new listings if buyers stop absorbing them.

Source: Realtor.com new residential listings, King County WA, via FRED NEWLISCOU53033. Auto-generated each build.