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

Highway Statistics Series

Highway Statistics 2021


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

February 13, 2023

Table HM-20M
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 918 - 3,301 6,352 19,789 9,533 73,046 112,940 697 53 2,083 3,828 5,833 352 35,433 48,279 161,219
Alaska 1,612 - 1,286 693 2,206 2,316 15,333 23,446 127 - 225 323 405 380 3,564 5,024 28,470
Arizona 1,474 31 2,033 3,518 5,369 4,779 52,255 69,459 406 404 1,375 4,086 4,525 4,292 35,804 50,892 120,351
Arkansas 798 116 3,020 4,929 19,017 10,861 93,433 132,174 438 156 1,017 2,941 3,497 387 19,249 27,686 159,859
California 1,945 657 5,465 10,093 20,098 12,368 69,981 120,607 2,008 2,395 10,778 16,988 20,654 359 111,548 164,730 285,337
Colorado 1,043 45 4,134 5,590 8,782 14,200 76,081 109,876 489 524 1,719 2,911 2,987 108 25,239 33,976 143,851
Connecticut 46 57 196 350 1,386 674 6,231 8,941 511 392 1,146 2,691 2,927 512 17,260 25,439 34,380
Delaware - 59 167 145 635 412 3,224 4,643 65 51 337 361 663 111 4,299 5,888 10,531
Dist. of Columbia - - - - - - - - 19 26 172 263 250 - 1,714 2,445 2,445
Florida 1,154 281 4,214 3,528 6,474 5,155 37,813 58,619 1,252 968 6,362 6,810 10,411 3,027 111,549 140,380 198,999
Georgia 866 - 3,913 7,503 18,764 10,792 78,987 120,826 1,141 280 3,786 7,748 5,973 1,174 61,368 81,470 202,295
Hawaii - - 126 414 355 132 1,649 2,676 88 54 432 309 423 306 2,977 4,590 7,266
Idaho 839 65 2,762 2,359 9,531 5,953 51,548 73,056 149 30 696 1,067 1,230 19 10,708 13,898 86,955
Illinois 2,001 78 3,803 7,703 18,713 7,589 114,922 154,809 1,516 189 4,649 6,748 7,800 2,500 56,747 80,150 234,959
Indiana 1,274 247 3,134 3,342 15,715 12,290 70,643 106,645 792 255 2,783 4,970 5,447 1,349 35,198 50,793 157,438
Iowa 984 - 5,514 6,294 22,947 25,742 102,671 164,151 284 - 1,485 2,701 2,175 1 14,082 20,727 184,878
Kansas 1,030 647 4,232 6,848 36,093 15,115 137,937 201,902 379 318 495 2,186 2,851 747 15,112 22,089 223,990
Kentucky 1,144 640 2,010 3,747 9,447 15,044 72,515 104,548 374 103 1,024 2,185 2,233 653 17,469 24,042 128,590
Louisiana 852 54 1,626 3,065 7,960 5,423 49,538 68,517 654 188 1,642 3,046 3,875 1,785 26,377 37,567 106,084
Maine 449 4 1,275 1,514 5,265 3,354 19,682 31,545 140 26 209 392 759 166 3,518 5,210 36,755
Maryland 229 111 519 1,147 2,097 2,738 14,795 21,635 541 496 1,650 2,542 2,982 876 21,591 30,679 52,314
Massachusetts 101 17 168 503 1,392 992 6,784 9,958 812 521 3,165 6,477 4,941 - 33,400 49,315 59,272
Michigan 905 553 3,428 7,865 26,357 6,823 89,233 135,164 1,088 569 3,802 7,955 6,314 203 41,314 61,246 196,410
Minnesota 946 54 5,583 10,641 25,294 19,387 129,523 191,429 524 354 1,010 4,009 3,834 2,745 26,010 38,486 229,915
Mississippi 931 - 2,871 6,041 19,213 3,706 70,931 103,695 408 103 1,534 1,761 2,545 17 14,686 21,053 124,747
Missouri 1,363 1,810 3,034 6,450 26,122 10,069 124,826 173,674 866 794 1,403 3,461 3,742 639 28,994 39,899 213,573
Montana 1,762 - 4,463 4,584 11,076 14,195 75,370 111,450 157 - 411 469 648 87 5,174 6,948 118,398
Nebraska 667 534 3,763 6,727 18,287 14,094 96,451 140,522 110 210 524 1,396 1,049 112 9,604 13,005 153,527
Nevada 735 - 2,445 1,168 3,636 3,872 47,231 59,087 260 89 609 1,438 80 1,932 12,453 16,860 75,947
New Hampshire 228 15 519 1,006 1,676 1,714 12,752 17,911 134 119 360 790 871 - 5,932 8,205 26,116
New Jersey 72 57 257 494 1,247 543 5,952 8,623 622 729 2,895 5,843 4,703 647 38,351 53,790 62,413
New Mexico 1,358 - 3,084 3,664 7,266 5,040 77,607 98,020 250 19 1,130 1,195 1,370 505 13,673 18,141 116,161
New York 1,297 296 3,389 4,578 9,080 14,957 69,845 103,442 1,512 1,311 5,116 8,867 8,902 418 54,543 80,670 184,112
North Carolina 909 680 2,629 4,921 12,054 9,692 75,220 106,105 1,284 731 3,225 5,541 5,427 763 50,853 67,823 173,928
North Dakota 820 - 4,741 4,067 19,550 - 108,409 137,588 98 - 333 504 544 - 3,217 4,697 142,285
Ohio 1,034 539 2,462 4,271 17,739 10,129 84,073 120,247 1,505 942 3,941 6,399 8,630 991 54,953 77,360 197,608
Oklahoma 1,045 24 3,620 4,305 33,877 4,835 107,059 154,764 456 327 1,894 3,643 2,498 221 21,743 30,781 185,545
Oregon 797 - 4,276 3,581 13,151 12,784 68,877 103,466 377 110 1,379 2,073 3,403 855 16,145 24,343 127,810
Pennsylvania 1,716 580 2,620 7,087 11,533 11,229 81,710 116,476 1,283 896 4,631 6,544 9,416 39 55,280 78,089 194,564
Rhode Island 29 17 157 116 277 245 1,354 2,194 84 131 552 548 873 56 5,258 7,502 9,696
South Carolina 879 74 2,480 4,804 16,111 3,263 60,525 88,136 490 133 1,731 2,850 4,532 128 29,461 39,324 127,460
South Dakota 951 468 4,170 4,765 20,055 9,860 85,290 125,560 141 24 216 719 549 - 3,613 5,262 130,822
Tennessee 1,037 41 3,078 4,582 7,988 15,525 71,309 103,561 896 288 3,153 4,100 4,096 1,658 37,259 51,450 155,011
Texas 3,223 207 14,408 16,041 56,646 23,827 219,746 334,098 2,355 2,296 9,223 13,744 25,989 1,820 128,929 184,357 518,455
Utah 1,102 19 1,917 2,081 5,218 5,596 42,442 58,374 408 103 1,078 1,096 1,800 906 14,945 20,336 78,710
Vermont 412 1 530 1,182 3,192 1,434 13,766 20,516 103 24 206 238 400 52 1,389 2,413 22,930
Virginia 954 158 2,644 5,795 11,977 7,972 48,863 78,363 846 578 2,171 3,667 4,134 1,231 30,769 43,396 121,759
Washington 690 985 2,113 3,328 13,019 10,019 58,038 88,192 538 680 2,324 4,478 4,430 428 26,754 39,633 127,825
West Virginia 514 1 1,671 2,162 8,907 3,469 35,013 51,737 380 23 653 1,160 1,449 99 7,001 10,765 62,502
Wisconsin 824 327 4,619 7,663 19,530 13,444 100,972 147,378 591 548 3,159 4,338 4,830 - 25,346 38,813 186,191
Wyoming 1,299 - 3,169 1,964 4,374 13,932 19,016 43,754 170 4 373 417 866 192 2,598 4,620 48,373
U.S. Total 47,261 10,548 147,037 215,572 656,488 417,119 3,230,471 4,724,497 30,822 19,566 106,270 180,815 210,761 35,846 1,430,454 2,014,534 6,739,031
Puerto Rico 87 3 107 413 538 312 6,082 7,541 372 84 599 1,444 1,775 56 20,258 24,587 32,129
Grand Total 47,349 10,551 147,144 215,984 657,026 417,431 3,236,554 4,732,038 31,193 19,650 106,869 182,259 212,536 35,902 1,450,711 2,039,121 6,771,159

(1) Due to conversion from English to metric units and to rounding, individual cell values may not agree with corresponding mileage table cell values.
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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