Landslide Index Rankings
Landslide Index: The landslide index measures the percentage of all races won by a margin of victory of at least 20 percent.
| Rank | State | Index |
| 1 | Alaska | 0.0% |
| Delaware | 0.0% | |
| Nebraska | 0.0% | |
| New Hampshire | 0.0% | |
| Vermont | 0.0% | |
| Wyoming | 0.0% | |
| 7 | Iowa | 20.0% |
| 8 | Kentucky | 33.3% |
| Nevada | 33.3% | |
| New Mexico | 33.3% | |
| 11 | Connecticut | 40.0% |
| 12 | Colorado | 42.9% |
| 13 | Idaho | 50.0% |
| Ohio | 50.0% | |
| 15 | Pennsylvania | 52.6% |
| 16 | Indiana | 55.6% |
| 17 | Florida | 56.0% |
| 18 | Illinois | 57.9% |
| 19 | Arizona | 62.5% |
| Minnesota | 62.5% | |
| 21 | Virginia | 63.6% |
| 22 | Washington | 66.7% |
| West Virginia | 66.7% | |
| 24 | New York | 72.4% |
| 25 | Michigan | 73.3% |
| 26 | Kansas | 75.0% |
| 27 | New Jersey | 76.9% |
| North Carolina | 76.9% | |
| 29 | Oregon | 80.0% |
| 30 | South Carolina | 83.3% |
| 31 | Texas | 84.4% |
| 32 | Georgia | 84.6% |
| 33 | Louisiana | 85.7% |
| 34 | Wisconsin | 87.5% |
| 35 | California | 94.3% |
| 36 | Alabama | 100% |
| Arkansas | 100% | |
| Hawaii | 100% | |
| Maine | 100% | |
| Maryland | 100% | |
| Massachusetts | 100% | |
| Mississippi | 100% | |
| Missouri | 100% | |
| Montana | 100% | |
| North Dakota | 100% | |
| Oklahoma | 100% | |
| Rhode Island | 100% | |
| South Dakota | 100% | |
| Tennessee | 100% | |
| Utah | 100% | |
| US | United States | 73.1% |