The chart below provides an estimate of the number of state DOT-permitted billboard faces per 100,000 residents of each state in order from greatest to smallest (2021). These counts do not include digital billboards, billboards of an unknown/other type, or billboards that are not permitted by the state DOTs.
| Rank | State | State DOT-permitted Billboard Faces per 100,000 Residents |
| 1 | Wyoming | 2,504 |
| 2 | South Dakota | 906 |
| 3 | West Virginia | 687 |
| 4 | New Mexico | 470 |
| 5 | Montana | 418 |
| 6 | Oklahoma | 357 |
| 7 | North Dakota | 352 |
| 8 | Missouri | 286 |
| 9 | Kansas | 286 |
| 10 | Louisiana | 268 |
| 11 | Alabama | 267 |
| 12 | Tennessee | 248 |
| 13 | Arkansas | 244 |
| 14 | Michigan | 232 |
| 15 | Nebraska | 201 |
| 16 | Indiana | 199 |
| 17 | Delaware | 185 |
| 18 | Wisconsin | 174 |
| 19 | Ohio | 166 |
| 20 | South Carolina | 163 |
| 21 | Iowa | 156 |
| 22 | Mississippi | 152 |
| 23 | Florida | 150 |
| 24 | Pennsylvania | 145 |
| 25 | New Jersey | 142 |
| 26 | Utah | 137 |
| 27 | North Carolina | 130 |
| 28 | Minnesota | 129 |
| 29 | Illinois | 123 |
| 30 | Maryland | 117 |
| 31 | Georgia | 116 |
| 32 | Virginia | 96 |
| 33 | Kentucky | 91 |
| 34 | Texas | 84 |
| 35 | Nevada | 71 |
| 36 | Oregon | 70 |
| 37 | New Hampshire | 66 |
| 38 | Connecticut | 56 |
| 39 | Idaho | 55 |
| 40 | Arizona | 51 |
| 41 | New York | 49 |
| 42 | Colorado | 43 |
| 43 | Massachusetts | 41 |
| 44 | Rhode Island | 37 |
| 45 | California | 37 |
| 46 | Washington | 29 |
| 47 | District of Columbia | 9 |
| – | Alaska | 0 |
| – | Hawaii | 0 |
| – | Maine | 0 |
| – | Vermont | 0 |