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Public Road Length by Functional System and State, 1980 - 2024 (HM-20)

U.S Department of Transportation

Updated Oct 25, 2026

About this dataset

Annual length of U.S. public roads in miles by functional system for each of the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-20. (Note: In 2009, the Urban functional class of Collectors became Major Collectors and Minor Collectors.)

Data and resources (3)

Prototype by Datopian · not an official government website · data from data.virginia.gov