Seattle Trendlines

Wednesday, September 2, 2026·Charts every weekday

Battery or plug-in hybrid, July 2026

transport
energy
Published

September 2, 2026

Battery-electric against plug-in hybrid registrations statewide in Washington, monthly, 2017 to July 2026: the battery line climbs to 230,345 while plug-in hybrids flatten near 55,589.

Washington registered 230,345 battery-electric vehicles and 55,589 plug-in hybrids in July 2026. Batteries are 81% of the state’s electric fleet, and their count is up 13.5% on the year.

Statewide the gap is wider than King County’s, which is the opposite of what the geography would suggest: the plug-in hybrid is the car for long drives and thin charging networks, so a rural state might have been expected to keep more of them. It has not. Whatever is driving the shift to full battery is not a Seattle phenomenon.

A stock rather than sales — the vehicles registered in that month.

Source: Washington State Department of Licensing, Electric Vehicle Population, statewide, via data.wa.gov (Socrata 3d5d-sdqb). Auto-generated each build.