Cubit logo
Blog

Road Miles by State

Planning Data Kristen Carney
Map showing road miles distributed across US states

Photo by Dan Gold on Unsplash

This blog post was updated on April 30, 2021.

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 2019 lane miles–which is the most recent dataset available today and is dated September 2020.

Road Miles by State: Sorted from Most to Least

STATE TOTAL LANE MILES
Texas 683,533
California 396,540
Illinois 306,658
Minnesota 290,618
Kansas 286,606
Missouri 277,504
Florida 275,376
Georgia 272,662
Ohio 262,492
Michigan 256,579
Pennsylvania 251,708
New York 240,489
Wisconsin 239,318
Oklahoma 238,754
Iowa 235,549
North Carolina 229,011
Arkansas 210,729
Alabama 210,531
Tennessee 203,850
Indiana 202,707
Nebraska 193,996
Colorado 185,486
North Dakota 178,845
Washington 167,632
Kentucky 166,971
South Dakota 166,635
South Carolina 166,594
Virginia 164,132
Oregon 162,101
Mississippi 162,088
Montana 150,446
New Mexico 150,216
Arizona 146,465
Louisiana 134,115
Idaho 107,568
Utah 102,031
Nevada 100,805
New Jersey 85,108
West Virginia 80,167
Massachusetts 77,730
Maryland 71,129
Wyoming 62,620
Maine 46,736
Connecticut 45,916
Alaska 36,009
New Hampshire 33,391
Vermont 29,273
Delaware 14,069
Rhode Island 12,664
Hawaii 9,799
District of Columbia 3,445
Source: U.S. Department of Transportation Federal Highway Administration. Office of Highway Policy Information. Highway Statistics Series. Functional System Lane-Length – 2019. Released September 30, 2020. You can download an Excel or PDF version of this data here.

Pie Graph Showing 2019 Lane Miles by State
And just for fun, here’s a pie graph of this table.

Pie chart of 2019 lane miles by state

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.

3 Comments

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

    Thanks!

    Chris
    1. Kristen Carney
      Hey Chris,
      For those details, head over to the FHWA's website. I've included links in the post.
      Cheers!
      Kristen
  2. B Lund
    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 ...

Pingbacks

Recent posts