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The average annual number of miles that a combination truck (a tractor with at least one trailer) was driven in 2021 was 62,229 miles. Single-unit trucks are more often driven locally or regionally, resulting in much lower average annual miles driven—just 12,306 miles in 2021.

Average Annual Miles Per Truck, 2021

Note: Single-unit trucks are single frame trucks that have two axles and at least 6 tires or a gross vehicle weight rating exceeding 10,000 lbs. 

Sources: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics 2021, Table VM-1, March 2023.