The current average miles per gallon (mpg) for light-duty vehicles in the United States is approximately 24.2 mpg. This figure aligns with the national average reported as of 2025, with ongoing efforts to gradually increase fuel efficiency to reach goals like 54.5 mpg by the year 2025 for new vehicles.

If clarification or a more specific context (such as type of vehicle, hybrid vs. gasoline, or specific models) is needed, I can provide further detailed information.