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This map shows the density of light-duty vehicles per state based on registration counts derived by the National Renewable Energy Laboratory with data from Experian Information Solutions. Counts are rounded to the closest 100 vehicles and reflect the total number of light-duty registered vehicles through the selected year. Fuel types are based on vehicle identification numbers (VINs), which do not reflect aftermarket conversions to use different fuels or power sources.

For a table of this data comparing state counts by fuel type, see Vehicle Registration Counts by State. For related fueling infrastructure, see the Alternative Fueling Station Locator and the Station Counts by State page.

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