Road Miles by State

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 2008 lane miles–which is the most recent dataset available today and is dated October 2009.

Road Miles by State: Sorted from Most to Least

STATE TOTAL LANE MILES
Texas 654,923
California 386,604
Illinois 292,789
Kansas 286,642
Minnesota 283,828
Missouri 268,201
Florida 267,793
Ohio 261,653
Georgia 257,077
Michigan 255,924
Pennsylvania 253,838
New York 242,769
Wisconsin 237,124
Iowa 235,460
Oklahoma 235,004
North Carolina 221,456
Arkansas 204,051
Alabama 201,752
Indiana 197,997
Tennessee 194,755
Nebraska 190,398
Colorado 183,498
North Dakota 175,960
Washington 174,731
South Dakota 166,814
Kentucky 163,988
Virginia 160,097
Mississippi 156,211
Montana 151,209
New Mexico 142,940
South Carolina 139,690
Arizona 131,356
Louisiana 128,532
Oregon 122,395
Idaho 98,132
Utah 93,914
New Jersey 84,281
West Virginia 79,144
Massachusetts 76,200
Nevada 71,315
Maryland 68,889
Wyoming 58,385
Maine 46,750
Connecticut 45,552
New Hampshire 33,002
Alaska 31,108
Vermont 29,641
Delaware 13,613
Rhode Island 13,520
Hawaii 9,523
Dist. of Columbia 3,541
U.S. Total 8,483,969

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.

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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)?

    Thanks!

    Chris

  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.
    Cheers!
    Kristen

  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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