Road Miles by State

RoadMilesByStateGraphThis blog post was updated on April 22, 2015. I find myself googling for this data once a month or so. I just can’t seem to remember where to find it on the Federal Highway Administration’s website. Below are states by total 2013 lane miles–which is the most recent dataset available today and is dated October 2014.

Road Miles by State: Sorted from Most to Least

Texas            675,580
California            394,608
Illinois            305,872
Kansas            287,100
Minnesota            285,084
Missouri            273,589
Georgia            271,920
Florida          271,024
Ohio            262,851
Michigan            256,806
Pennsylvania            250,199
New York            242,395
Wisconsin            238,025
Iowa            234,793
Oklahoma            234,633
North Carolina             225,168
Alabama            213,068
Arkansas            209,159
Indiana            203,569
Tennessee            202,185
Nebraska            190,716
Colorado            184,289
North Dakota            176,509
Washington           171,031
South Dakota            167,652
Kentucky            165,944
Virginia            161,914
Mississippi            156,999
Montana            152,940
New Mexico            147,600
Oregon            146,468
Arizona            144,393
South Carolina            140,106
Louisiana            130,038
Idaho              98,649
Utah              97,448
New Jersey              85,557
Nevada              85,323
West Virginia              79,891
Massachusetts               76,852
Maryland              71,126
Wyoming              60,454
Maine              46,879
Connecticut              45,744
New Hampshire              33,156
Alaska              31,618
Vermont              29,301
Delaware             13,849
Rhode Island              12,915
Hawaii                9,662
District of Columbia                3,418
U.S. Total          8,656,070
Source: U.S. Department of Transportation Federal Highway Administration. Office of Highway Policy Information. Highway Statistics Series. Functional System Lane-Length – 2013. Released October 21, 2014. You can download an Excel or PDF version of this data here.

Pie Graph Showing 2013 Lane Miles by State
And just for fun, here’s a pie graph of this table.



Helpful Links with Road Miles by State data
If you need historic data like lane miles for 1980 to 2007, check out Functional System Data; Estimated Lane – Length page. If you need Function System data for 2008 (i.e. interstates, freeways, arterial, collectors and local), check out FHWA’s Functional System Lane-Length – 2008 Lane-Miles page.

And below are links to FHWA’s Functional System Lane-Length by year. You can download PDF and Excel versions of the data on these pages.

Got questions? Email us.

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5 Responses to Road Miles by State

  1. Christopher May 28, 2011 at 7:22 pm #

    Can you please define ‘lane mile’ for me? Also, are these totals for all public roads (interstate, freeway, commercial, residential, etc)?



  2. Kristen Carney May 30, 2011 at 3:21 pm #

    Hey Chris,
    For those details, head over to the FHWA’s website. I’ve included links in the post.

  3. B Lund May 24, 2012 at 11:28 am #

    I have seen numbers as high as 2+ M miles of roads, all types, for California alone. These numbers are always low as they don’t usually count privately owned roads (ranch, private logging lands, etc.) and they don’t count primitive roads on USFS or BLM lands which can be in the thousands per county alone.

    We should have a listing for alternative numbers …


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