| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,727 | 9.7 | - | |
| D. C. | Washington | 76 | 132.9 | 1 |
| Ga, S | Savannah | 121 | 90.9 | 2 |
| N. Y., S | Manhattan | 108 | 22.2 | 3 |
| Hawaii | Honolulu | 23 | 19.0 | 4 |
| Fla, S | Miami | 108 | 18.2 | 5 |
| Alaska | Anchorage | 11 | 17.5 | 6 |
| Cal, S | San Diego | 51 | 17.3 | 7 |
| Nevada | Las Vegas | 32 | 16.0 | 8 |
| Texas, N | Fort Worth | 78 | 13.2 | 9 |
| Ill, N | Chicago | 117 | 13.1 | 10 |
| La, E | New Orleans | 21 | 12.4 | 11 |
| Texas, W | San Antonio | 63 | 12.3 | 12 |
| Wyoming | Cheyenne | 6 | 12.2 | 13 |
| Texas, S | Houston | 81 | 11.7 | 14 |
| Delaware | Wilmington | 9 | 11.5 | 15 |
| Cal, N | San Francisco | 84 | 11.4 | 16 |
| N. Y., E | Brooklyn | 90 | 11.4 | 16 |
| S Dakota | Sioux Falls | 8 | 10.6 | 18 |
| W Virg, N | Wheeling | 9 | 10.5 | 19 |
| Conn | New Haven | 35 | 10.3 | 20 |
| N. J. | Newark | 85 | 10.1 | 21 |
| Penn, E | Philadelphia | 55 | 10.1 | 21 |
| Montana | Billings | 9 | 10.0 | 23 |
| Cal, C | Los Angeles | 166 | 9.8 | 24 |
| Mich, E | Detroit | 65 | 9.8 | 24 |
| Penn, W | Pittsburgh | 38 | 9.7 | 26 |
| Ga, N | Atlanta | 48 | 9.5 | 27 |
| Mo, E | St. Louis | 26 | 9.3 | 28 |
| Mo, W | Kansas City | 26 | 9.3 | 28 |
| N Dakota | Fargo | 6 | 9.3 | 28 |
| Ohio, N | Cleveland | 55 | 9.3 | 28 |
| Tenn, W | Memphis | 14 | 9.3 | 28 |
| Colorado | Denver | 38 | 8.8 | 33 |
| Ind, S | Indianapolis | 32 | 8.8 | 33 |
| Ind, N | South Bend | 21 | 8.5 | 35 |
| Tenn, M | Nashville | 16 | 8.5 | 35 |
| Utah | Salt Lake City | 19 | 8.5 | 35 |
| Ken, W | Louisville | 17 | 8.4 | 38 |
| N. Y., W | Buffalo | 24 | 8.4 | 38 |
| Maryland | Baltimore | 44 | 8.3 | 40 |
| Mass | Boston | 52 | 8.2 | 41 |
| Ill, S | East St. Louis | 10 | 7.9 | 42 |
| Miss, S | Jackson | 14 | 7.9 | 42 |
| Wisc, E | Milwaukee | 25 | 7.8 | 44 |
| Okla, W | Oklahoma City | 14 | 7.7 | 45 |
| Ala, S | Mobile | 6 | 7.6 | 46 |
| Virg, E | Alexandria | 38 | 7.5 | 47 |
| Okla, N | Tulsa | 7 | 7.4 | 48 |
| Ala, N | Birmingham | 19 | 7.3 | 49 |
| Fla, M | Tampa | 62 | 7.3 | 49 |
| Arizona | Phoenix | 37 | 7.2 | 51 |
| Wash, W | Seattle | 33 | 7.2 | 51 |
| La, M | Baton Rouge | 5 | 7.1 | 53 |
| Idaho | Boise | 9 | 7.0 | 54 |
| N Car, W | Asheville | 17 | 6.8 | 55 |
| Oregon | Portland | 23 | 6.7 | 56 |
| Ark, E | Little Rock | 10 | 6.6 | 57 |
| Ga, M | Macon | 12 | 6.6 | 57 |
| N Mexico | Albuquerque | 12 | 6.6 | 57 |
| Fla, N | Pensacola | 10 | 6.5 | 60 |
| Ohio, S | Cincinnati | 35 | 6.4 | 61 |
| Minnesota | Minneapolis | 31 | 6.3 | 62 |
| W Virg, S | Charleston | 6 | 6.3 | 62 |
| Iowa, S | Des Moines | 10 | 6.2 | 64 |
| Penn, M | Scranton | 18 | 6.1 | 65 |
| Mich, W | Grand Rapids | 20 | 6.0 | 66 |
| N. Y., N | Syracuse | 19 | 5.7 | 67 |
| R. I. | Providence | 6 | 5.7 | 67 |
| N Car, E | Raleigh | 17 | 5.5 | 69 |
| Ill, C | Springfield | 12 | 5.4 | 70 |
| Virg, W | Roanoke | 11 | 5.4 | 70 |
| Nebraska | Omaha | 9 | 5.3 | 72 |
| S Car | Columbia | 21 | 5.2 | 73 |
| Tenn, E | Knoxville | 12 | 5.2 | 73 |
| Ken, E | Lexington | 10 | 5.0 | 75 |
| Kansas | Topeka | 13 | 4.8 | 76 |
| Miss, N | Oxford | 5 | 4.7 | 77 |
| Wisc, W | Madison | 10 | 4.7 | 77 |
| Wash, E | Spokane | 6 | 4.6 | 79 |
| Cal, E | Sacramento | 29 | 4.5 | 80 |
| N Car, M | Greensboro | 11 | 4.5 | 80 |
| New Hamp | Concord | 5 | 4.0 | 82 |
| Maine | Portland | 5 | 3.9 | 83 |
| Vermont | Burlington | 2 | 3.3 | 84 |
| La, W | Shreveport | 6 | 2.9 | 85 |
| Okla, E | Muskogee | 2 | 2.9 | 85 |
| Ala, M | Montgomery | 3 | 2.8 | 87 |
| Ark, W | Fort Smith | 3 | 2.6 | 88 |
| Iowa, N | Cedar Rapids | 3 | 2.3 | 89 |
| Texas, E | Tyler | 5 | 1.7 | 90 |