How many electric and hybrid cars are on the road, and how old are they?

California's DMV counts 2,080,015 registered hybrid gasoline vehicles, 37.9% of them seven or more years old, and 38.6% of Washington's hybrid registrations over the last 12 months were for hybrids that old, the age range where hybrid battery replacement starts to be a real expense (state registry counts).

Hybrid gasoline vehicles by model-year age: California fleet (light duty, 1 January 2026 snapshot; model years before 2012 are one group) and Washington registration transactions over 12 months

What it shows: <3 is the largest at 852,365, followed by 3-4 at 269,572; the smallest shown is 5-6 at 170,128.

Source: California DMV, Vehicle Fuel Type Count by ZIP Code · file downloaded 2026-10

Data and chart by CalcScrape: Hybrid Battery Replacement Cost Calculator