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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Highway Statistics Series / 2021 / Table HM-20 - Highway Statistics 2021

Highway Statistics Series

Highway Statistics 2021


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Public Road Length - 2021 (1)
    Miles By Functional System

February 13, 2023

Table HM-20
STATE RURAL URBAN TOTAL
INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL MINOR ARTERIAL MAJOR COLLECTOR MINOR COLLECTOR LOCAL TOTAL INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL MINOR ARTERIAL MAJOR COLLECTOR MINOR COLLECTOR LOCAL TOTAL
Alabama 571 - 2,051 3,947 12,297 5,924 45,389 70,178 433 33 1,294 2,378 3,625 219 22,017 29,999 100,177
Alaska 1,002 - 799 431 1,370 1,439 9,528 14,569 79 - 140 201 252 236 2,215 3,122 17,690
Arizona 916 19 1,263 2,186 3,336 2,970 32,470 43,160 252 251 855 2,539 2,812 2,667 22,248 31,623 74,783
Arkansas 496 72 1,877 3,063 11,817 6,749 58,057 82,129 272 97 632 1,828 2,173 240 11,961 17,203 99,332
California 1,208 408 3,396 6,271 12,489 7,685 43,484 74,942 1,248 1,488 6,697 10,556 12,834 223 69,313 102,358 177,300
Colorado 648 28 2,569 3,474 5,457 8,824 47,275 68,274 304 325 1,068 1,809 1,856 67 15,683 21,111 89,385
Connecticut 29 36 122 218 861 419 3,872 5,556 318 244 712 1,672 1,818 318 10,725 15,807 21,363
Delaware - 36 104 90 395 256 2,004 2,885 41 32 210 224 412 69 2,671 3,659 6,544
District of Columbia - - - - - - - - 12 16 107 164 155 - 1,065 1,520 1,520
Florida 717 175 2,618 2,192 4,023 3,203 23,496 36,424 778 602 3,953 4,231 6,469 1,881 69,313 87,228 123,652
Georgia 538 - 2,431 4,662 11,659 6,706 49,080 75,078 709 174 2,352 4,814 3,712 729 38,132 50,623 125,701
Hawaii - - 78 258 220 82 1,025 1,663 55 34 269 192 263 190 1,850 2,852 4,515
Idaho 521 40 1,716 1,466 5,923 3,699 32,031 45,395 93 18 433 663 764 12 6,654 8,636 54,031
Illinois 1,243 48 2,363 4,786 11,628 4,716 71,409 96,194 942 118 2,889 4,193 4,847 1,553 35,261 49,803 145,997
Indiana 792 154 1,948 2,077 9,765 7,636 43,896 66,266 492 158 1,730 3,088 3,384 838 21,871 31,561 97,827
Iowa 611 - 3,426 3,911 14,259 15,995 63,797 101,999 176 - 923 1,678 1,351 - 8,750 12,879 114,878
Kansas 640 402 2,630 4,255 22,427 9,392 85,710 125,456 236 198 308 1,358 1,771 464 9,390 13,725 139,181
Kentucky 711 398 1,249 2,328 5,870 9,348 45,059 64,963 233 64 636 1,358 1,387 406 10,855 14,939 79,902
Louisiana 529 34 1,010 1,904 4,946 3,370 30,781 42,575 406 117 1,020 1,892 2,408 1,109 16,390 23,343 65,918
Maine 279 3 792 941 3,272 2,084 12,230 19,601 87 16 130 244 472 103 2,186 3,237 22,838
Maryland 142 69 322 713 1,303 1,701 9,193 13,443 336 308 1,025 1,580 1,853 545 13,416 19,063 32,507
Massachusetts 63 10 105 313 865 617 4,215 6,187 504 324 1,966 4,024 3,070 - 20,754 30,643 36,830
Michigan 562 343 2,130 4,887 16,378 4,240 55,447 83,987 676 354 2,363 4,943 3,923 126 25,671 38,057 122,044
Minnesota 588 34 3,469 6,612 15,717 12,047 80,482 118,948 325 220 627 2,491 2,383 1,706 16,162 23,914 142,862
Mississippi 578 - 1,784 3,754 11,939 2,303 44,075 64,433 253 64 953 1,094 1,581 10 9,125 13,082 77,514
Missouri 847 1,125 1,885 4,008 16,231 6,257 77,563 107,916 538 494 872 2,150 2,325 397 18,016 24,792 132,708
Montana 1,095 - 2,773 2,848 6,882 8,821 46,833 69,252 98 - 256 292 403 54 3,215 4,317 73,569
Nebraska 415 332 2,338 4,180 11,363 8,757 59,932 87,317 69 130 326 868 652 70 5,967 8,081 95,397
Nevada 457 - 1,519 726 2,259 2,406 29,348 36,715 162 55 379 893 49 1,201 7,738 10,477 47,191
New Hampshire 142 9 323 625 1,041 1,065 7,924 11,129 83 74 223 491 541 - 3,686 5,098 16,228
New Jersey 45 35 160 307 775 338 3,699 5,358 387 453 1,799 3,631 2,922 402 23,830 33,424 38,781
New Mexico 844 - 1,916 2,277 4,515 3,132 48,223 60,907 155 12 702 742 851 314 8,496 11,272 72,179
New York 806 184 2,106 2,845 5,642 9,294 43,400 64,276 939 815 3,179 5,510 5,532 260 33,892 50,126 114,402
North Carolina 565 422 1,634 3,058 7,490 6,023 46,739 65,931 798 454 2,004 3,443 3,372 474 31,598 42,143 108,074
North Dakota 510 - 2,946 2,527 12,148 - 67,362 85,493 61 - 207 313 338 - 1,999 2,919 88,412
Ohio 643 335 1,530 2,654 11,023 6,294 52,240 74,718 935 585 2,449 3,976 5,362 616 34,146 48,069 122,788
Oklahoma 649 15 2,249 2,675 21,050 3,004 66,523 96,166 283 203 1,177 2,263 1,552 137 13,510 19,126 115,293
Oregon 495 - 2,657 2,225 8,172 7,944 42,798 64,291 234 69 857 1,288 2,115 531 10,032 15,126 79,417
Pennsylvania 1,066 360 1,628 4,404 7,166 6,978 50,772 72,375 797 556 2,878 4,066 5,851 24 34,349 48,522 120,897
Rhode Island 18 11 97 72 172 152 841 1,363 52 81 343 340 542 35 3,267 4,661 6,025
South Carolina 546 46 1,541 2,985 10,011 2,027 37,608 54,765 304 82 1,076 1,771 2,816 79 18,306 24,435 79,200
South Dakota 591 291 2,591 2,961 12,462 6,127 52,997 78,019 88 15 134 447 341 - 2,245 3,270 81,289
Tennessee 645 26 1,912 2,847 4,964 9,647 44,310 64,350 557 179 1,959 2,548 2,545 1,030 23,151 31,969 96,319
Texas 2,003 129 8,953 9,967 35,198 14,805 136,544 207,599 1,464 1,426 5,731 8,540 16,149 1,131 80,113 114,554 322,153
Utah 685 12 1,191 1,293 3,243 3,477 26,372 36,272 253 64 670 681 1,119 563 9,286 12,636 48,908
Vermont 256 1 329 734 1,984 891 8,554 12,748 64 15 128 148 248 32 863 1,500 14,248
Virginia 593 98 1,643 3,601 7,442 4,953 30,362 48,693 526 359 1,349 2,279 2,569 765 19,119 26,965 75,658
Washington 429 612 1,313 2,068 8,090 6,225 36,063 54,800 335 423 1,444 2,783 2,753 266 16,624 24,627 79,427
West Virginia 319 - 1,039 1,343 5,535 2,156 21,756 32,148 236 14 406 721 900 61 4,351 6,689 38,837
Wisconsin 512 203 2,870 4,762 12,135 8,354 62,741 91,577 367 341 1,963 2,695 3,001 - 15,749 24,117 115,694
Wyoming 807 - 1,969 1,220 2,718 8,657 11,816 27,187 106 3 232 259 538 119 1,614 2,871 30,058
U.S. Total 29,367 6,555 91,365 133,950 407,923 259,186 2,007,322 2,935,666 19,152 12,158 66,033 112,353 130,961 22,274 888,843 1,251,773 4,187,440
Puerto Rico 54 2 66 256 334 194 3,779 4,686 231 52 372 897 1,103 35 12,587 15,278 19,964
Grand Total 29,421 6,556 91,431 134,206 408,257 259,379 2,011,101 2,940,352 19,383 12,210 66,405 113,250 132,064 22,309 901,430 1,267,051 4,207,403

(1) Please note that due to data review and production issues with the 2021 HPMS data, some anomalous and/or missing data may exist.

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