| State | # Criminal Investigators | Per Capita | Rank |
| United States | 11,285 | 41.8 | - |
| District of Columbia | 1,385 | 2647.6 | 1 |
| Virginia | 636 | 93.6 | 2 |
| Arkansas | 217 | 85.5 | 3 |
| Utah | 161 | 76.7 | 4 |
| New York | 1,289 | 70.9 | 5 |
| Hawaii | 76 | 63.7 | 6 |
| Nevada | 105 | 60.1 | 7 |
| New Mexico | 90 | 51.8 | 8 |
| Texas | 857 | 43.4 | 9 |
| New Jersey | 342 | 42.1 | 10 |
| California | 1,367 | 41.8 | 11 |
| Florida | 616 | 41.3 | 12 |
| Illinois | 492 | 40.8 | 13 |
| Alaska | 25 | 40.7 | 14 |
| Nebraska | 67 | 40.3 | 15 |
| Massachusetts | 247 | 40.2 | 16 |
| Oklahoma | 134 | 40.0 | 17 |
| Missouri | 217 | 39.9 | 18 |
| Maryland | 197 | 38.4 | 19 |
| Pennsylvania | 442 | 36.8 | 20 |
| Colorado | 143 | 36.0 | 21 |
| Louisiana | 157 | 35.9 | 22 |
| West Virginia | 61 | 33.7 | 23 |
| Georgia | 252 | 33.0 | 24 |
| Connecticut | 104 | 31.8 | 25 |
| Tennessee | 156 | 28.7 | 26 |
| Alabama | 116 | 26.7 | 27 |
| Mississippi | 72 | 26.2 | 28 |
| Oregon | 85 | 25.9 | 29 |
| Michigan | 228 | 23.2 | 30 |
| Minnesota | 105 | 22.2 | 31 |
| Ohio | 245 | 21.9 | 32 |
| Washington | 114 | 20.0 | 33 |
| South Carolina | 75 | 19.6 | 34 |
| Kentucky | 74 | 18.8 | 35 |
| Indiana | 94 | 15.9 | 36 |
| Wisconsin | 75 | 14.4 | 37 |
| Arizona | 64 | 13.7 | 38 |
| North Carolina | 103 | 13.6 | 39 |
| Delaware | 0 | 0.0 | 40 |
| Idaho | 0 | 0.0 | 40 |
| Iowa | 0 | 0.0 | 40 |
| Kansas | 0 | 0.0 | 40 |
| Maine | 0 | 0.0 | 40 |
| Montana | 0 | 0.0 | 40 |
| New Hampshire | 0 | 0.0 | 40 |
| North Dakota | 0 | 0.0 | 40 |
| Rhode Island | 0 | 0.0 | 40 |
| South Dakota | 0 | 0.0 | 40 |
| Vermont | 0 | 0.0 | 40 |
| Wyoming | 0 | 0.0 | 40 |