“ Nearly half of King County residents are sweating it out without air conditioning — a far higher share than the national rate.
The big picture: Seattle no longer ranks as the least air-conditioned major city in the U.S. — that title goes to San Francisco— but the Puget Sound region still has some of the lowest rates of air conditioning in the country. “ https://www.axios.com/local/seattle/2026/06/02/seattle-heat-wave-air-conditioning-rates-king-county-homes-without-ac #AirConditioning
Nearly half of King County households don't have AC

The Seattle area remains far less air conditioned than most of the U.S. as hotter weather arrives.

Axios Seattle