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Electric Vehicle Population Size History By County

Published by data.wa.gov | State of Washington | Catalog Last Checked: May 18, 2026 at 02:46 PM | Dataset Last Updated: May 13, 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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