Highway mileage - United States 1990-2020

In 2020, the highway network in the United States had a total length of around 4.17 million statute miles. One statute mile is approximately equal to 5,280 feet. The United States has one of the most extensive road networks worldwide.

Highway mileage within the United States from 1990 to 2020 (in million statute miles)

Characteristic	Length in million statute miles
2020	4.17
2019	4.17
2018	4.18
2017	4.17
2016	4.14
2015	4.15
2014	4.18
2013	4.12
2012	4.09
2011	4.08
2010	4.07
2009	4.05
2008	4.04
2007	4.03
2006	4.02
2005	4
2004	3.98
2003	3.97
2002	3.97
2001	3.95
2000	3.94
1999	3.92
1998	3.91
1997	3.95
1996	3.92
1995	3.91
1994	3.91
1993	3.91
1992	3.9
1991	3.88
1990	3.87

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Release date

2022

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Region

United States

Survey time period

1990 to 2020

Supplementary notes

All public road street mileage in the 50 states and the District of Columbia. No consistent data on private road mileage are available. Beginning in 1998, approximately 43,000 miles of Bureau of Land Management Roads are excluded.

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