| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,775 | 10.3 | - | |
| D. C. | Washington | 113 | 216.7 | 1 |
| Cal, S | San Diego | 209 | 71.8 | 2 |
| La, E | New Orleans | 77 | 46.3 | 3 |
| Fla, S | Miami | 253 | 45.9 | 4 |
| Ala, S | Mobile | 28 | 35.8 | 5 |
| Texas, S | Houston | 225 | 34.3 | 6 |
| Arizona | Phoenix | 143 | 30.6 | 7 |
| Texas, W | San Antonio | 144 | 29.5 | 8 |
| Ga, S | Savannah | 36 | 27.9 | 9 |
| N. Y., S | Manhattan | 128 | 27.4 | 10 |
| N Mexico | Albuquerque | 39 | 22.5 | 11 |
| Fla, M | Tampa | 144 | 18.2 | 12 |
| Virg, E | Alexandria | 71 | 14.7 | 13 |
| Fla, N | Pensacola | 21 | 14.3 | 14 |
| Hawaii | Honolulu | 14 | 11.8 | 15 |
| Wash, W | Seattle | 50 | 11.3 | 16 |
| Vermont | Burlington | 6 | 10.2 | 17 |
| N. Y., E | Brooklyn | 70 | 9.5 | 18 |
| La, W | Shreveport | 19 | 9.4 | 19 |
| Cal, C | Los Angeles | 150 | 9.1 | 20 |
| N. J. | Newark | 73 | 9.0 | 21 |
| N. Y., W | Buffalo | 24 | 8.5 | 22 |
| Texas, N | Fort Worth | 47 | 8.5 | 22 |
| Cal, N | San Francisco | 59 | 8.3 | 24 |
| Miss, S | Jackson | 14 | 8.1 | 25 |
| Penn, E | Philadelphia | 40 | 7.7 | 26 |
| Ga, N | Atlanta | 35 | 7.6 | 27 |
| La, M | Baton Rouge | 5 | 7.4 | 28 |
| Nevada | Las Vegas | 12 | 6.9 | 29 |
| Mass | Boston | 42 | 6.8 | 30 |
| N Car, W | Asheville | 15 | 6.5 | 31 |
| Maryland | Baltimore | 33 | 6.4 | 32 |
| N Dakota | Fargo | 4 | 6.3 | 33 |
| Montana | Billings | 5 | 5.7 | 34 |
| Mich, E | Detroit | 36 | 5.5 | 35 |
| Ill, N | Chicago | 45 | 5.2 | 36 |
| Maine | Portland | 6 | 4.8 | 37 |
| S Car | Columbia | 18 | 4.7 | 38 |
| N. Y., N | Syracuse | 14 | 4.2 | 39 |
| Ark, E | Little Rock | 6 | 4.1 | 40 |
| Tenn, W | Memphis | 6 | 4.1 | 40 |
| Colorado | Denver | 15 | 3.8 | 42 |
| Oregon | Portland | 12 | 3.7 | 43 |
| N Car, E | Raleigh | 10 | 3.4 | 44 |
| Alaska | Anchorage | 2 | 3.3 | 45 |
| Wash, E | Spokane | 4 | 3.2 | 46 |
| Okla, W | Oklahoma City | 5 | 2.9 | 47 |
| Tenn, M | Nashville | 5 | 2.8 | 48 |
| Ind, S | Indianapolis | 9 | 2.6 | 49 |
| Mo, W | Kansas City | 7 | 2.6 | 49 |
| Utah | Salt Lake City | 5 | 2.4 | 51 |
| Ala, N | Birmingham | 6 | 2.3 | 52 |
| Ga, M | Macon | 4 | 2.3 | 52 |
| Mo, E | St. Louis | 6 | 2.2 | 54 |
| Minnesota | Minneapolis | 10 | 2.1 | 55 |
| Ohio, N | Cleveland | 12 | 2.0 | 56 |
| Mich, W | Grand Rapids | 6 | 1.9 | 57 |
| Ohio, S | Cincinnati | 10 | 1.9 | 57 |
| Wisc, E | Milwaukee | 5 | 1.6 | 59 |
| Conn | New Haven | 5 | 1.5 | 60 |
| Texas, E | Tyler | 4 | 1.5 | 60 |
| Penn, W | Pittsburgh | 5 | 1.3 | 62 |
| Cal, E | Sacramento | 6 | 1.0 | 63 |
| Ken, E | Lexington | 2 | 1.0 | 63 |
| Virg, W | Roanoke | 1 | 0.5 | 65 |
| Penn, M | Scranton | 1 | 0.3 | 66 |
| Ala, M | Montgomery | 0 | 0.0 | 67 |
| Ark, W | Fort Smith | 0 | 0.0 | 67 |
| Delaware | Wilmington | 0 | 0.0 | 67 |
| Idaho | Boise | 0 | 0.0 | 67 |
| Ill, S | East St. Louis | 0 | 0.0 | 67 |
| Ill, C | Springfield | 0 | 0.0 | 67 |
| Ind, N | South Bend | 0 | 0.0 | 67 |
| Iowa, N | Cedar Rapids | 0 | 0.0 | 67 |
| Iowa, S | Des Moines | 0 | 0.0 | 67 |
| Kansas | Topeka | 0 | 0.0 | 67 |
| Ken, W | Louisville | 0 | 0.0 | 67 |
| Miss, N | Oxford | 0 | 0.0 | 67 |
| Nebraska | Omaha | 0 | 0.0 | 67 |
| New Hamp | Concord | 0 | 0.0 | 67 |
| N Car, M | Greensboro | 0 | 0.0 | 67 |
| Okla, N | Tulsa | 0 | 0.0 | 67 |
| Okla, E | Muskogee | 0 | 0.0 | 67 |
| R. I. | Providence | 0 | 0.0 | 67 |
| S Dakota | Sioux Falls | 0 | 0.0 | 67 |
| Tenn, E | Knoxville | 0 | 0.0 | 67 |
| W Virg, N | Wheeling | 0 | 0.0 | 67 |
| W Virg, S | Charleston | 0 | 0.0 | 67 |
| Wisc, W | Madison | 0 | 0.0 | 67 |
| Wyoming | Cheyenne | 0 | 0.0 | 67 |