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U.S Department of Transportation
Public Road Length by Ownership and State, 2000 - 2020, 2022 - 2024 (HM-10)
Miles of public roads by the roadway's ownership and whether rural or urban for the 50 states, DC, and Puerto Rico from FHWA Highway Statistics table HM-10. (Note: In 2011, Ownership added a new value for "unreported.")
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Updated Oct 25, 2026