What King County sellers listed, September 2026
housing
King County sellers put 2,782 new listings on the market in September 2026, down 8.5% 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.