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Electric Vehicle Population Size History By County

Published by data.wa.gov | State of Washington | Catalog Last Checked: July 07, 2026 at 09:15 PM | Dataset Last Updated: June 12, 2026
This shows the number of vehicles that were registered by Washington State Department of Licensing (DOL) each month. The data is separated by county for passenger vehicles and trucks. DOL integrates National Highway Traffic Safety Administration (NHTSA) data and the Environmental Protection Agency (EPA) fuel efficiency ratings with DOL titling and registration data to create this information.

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