| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,851 | 10.5 | - | |
| Ala, N | Birmingham | 20 | 7.8 | 54 |
| Ala, M | Montgomery | 4 | 3.9 | 84 |
| Ala, S | Mobile | 7 | 8.9 | 44 |
| Alaska | Anchorage | 11 | 17.8 | 7 |
| Arizona | Phoenix | 45 | 9.4 | 40 |
| Ark, E | Little Rock | 11 | 7.5 | 56 |
| Ark, W | Fort Smith | 4 | 3.7 | 85 |
| Cal, N | San Francisco | 92 | 12.8 | 16 |
| Cal, C | Los Angeles | 170 | 10.2 | 30 |
| Cal, E | Sacramento | 34 | 5.4 | 72 |
| Cal, S | San Diego | 51 | 17.2 | 8 |
| Colorado | Denver | 41 | 10.1 | 32 |
| Conn | New Haven | 38 | 11.6 | 19 |
| Delaware | Wilmington | 9 | 11.9 | 18 |
| D. C. | Washington | 78 | 150.3 | 1 |
| Fla, N | Pensacola | 10 | 6.8 | 63 |
| Fla, M | Tampa | 64 | 8.0 | 52 |
| Fla, S | Miami | 109 | 19.5 | 6 |
| Ga, N | Atlanta | 58 | 12.3 | 17 |
| Ga, M | Macon | 11 | 6.3 | 66 |
| Ga, S | Savannah | 77 | 59.3 | 2 |
| Hawaii | Honolulu | 24 | 20.2 | 4 |
| Idaho | Boise | 10 | 8.0 | 52 |
| Ill, N | Chicago | 123 | 14.2 | 12 |
| Ill, S | East St. Louis | 11 | 8.7 | 47 |
| Ill, C | Springfield | 11 | 5.0 | 78 |
| Ind, N | South Bend | 22 | 9.1 | 42 |
| Ind, S | Indianapolis | 32 | 9.0 | 43 |
| Iowa, N | Cedar Rapids | 4 | 3.1 | 86 |
| Iowa, S | Des Moines | 12 | 7.6 | 55 |
| Kansas | Topeka | 14 | 5.3 | 75 |
| Ken, E | Lexington | 13 | 6.6 | 64 |
| Ken, W | Louisville | 19 | 9.6 | 39 |
| La, E | New Orleans | 24 | 14.4 | 11 |
| La, M | Baton Rouge | 7 | 10.3 | 29 |
| La, W | Shreveport | 5 | 2.5 | 88 |
| Maine | Portland | 6 | 4.8 | 80 |
| Maryland | Baltimore | 50 | 9.7 | 37 |
| Mass | Boston | 61 | 9.9 | 34 |
| Mich, E | Detroit | 69 | 10.4 | 28 |
| Mich, W | Grand Rapids | 23 | 7.1 | 59 |
| Minnesota | Minneapolis | 30 | 6.3 | 66 |
| Miss, N | Oxford | 5 | 4.8 | 80 |
| Miss, S | Jackson | 14 | 8.1 | 51 |
| Mo, E | St. Louis | 24 | 8.7 | 47 |
| Mo, W | Kansas City | 29 | 10.7 | 23 |
| Montana | Billings | 9 | 10.2 | 30 |
| Nebraska | Omaha | 9 | 5.4 | 72 |
| Nevada | Las Vegas | 36 | 19.9 | 5 |
| New Hamp | Concord | 6 | 5.0 | 78 |
| N. J. | Newark | 87 | 10.7 | 23 |
| N Mexico | Albuquerque | 12 | 6.9 | 61 |
| N. Y., N | Syracuse | 23 | 6.9 | 61 |
| N. Y., E | Brooklyn | 96 | 13.0 | 14 |
| N. Y., S | Manhattan | 109 | 23.2 | 3 |
| N. Y., W | Buffalo | 30 | 10.7 | 23 |
| N Car, E | Raleigh | 17 | 5.7 | 69 |
| N Car, M | Greensboro | 13 | 5.6 | 71 |
| N Car, W | Asheville | 17 | 7.2 | 57 |
| N Dakota | Fargo | 7 | 11.0 | 20 |
| Ohio, N | Cleveland | 57 | 9.7 | 37 |
| Ohio, S | Cincinnati | 39 | 7.2 | 57 |
| Okla, N | Tulsa | 9 | 9.8 | 36 |
| Okla, E | Muskogee | 3 | 4.4 | 82 |
| Okla, W | Oklahoma City | 19 | 10.8 | 22 |
| Oregon | Portland | 20 | 6.0 | 68 |
| Penn, E | Philadelphia | 55 | 10.5 | 27 |
| Penn, M | Scranton | 19 | 6.6 | 64 |
| Penn, W | Pittsburgh | 39 | 10.0 | 33 |
| R. I. | Providence | 7 | 7.1 | 59 |
| S Car | Columbia | 22 | 5.7 | 69 |
| S Dakota | Sioux Falls | 8 | 10.9 | 21 |
| Tenn, E | Knoxville | 12 | 5.4 | 72 |
| Tenn, M | Nashville | 17 | 9.4 | 40 |
| Tenn, W | Memphis | 13 | 8.9 | 44 |
| Texas, N | Fort Worth | 86 | 15.3 | 9 |
| Texas, E | Tyler | 6 | 2.2 | 89 |
| Texas, S | Houston | 89 | 13.3 | 13 |
| Texas, W | San Antonio | 64 | 12.9 | 15 |
| Utah | Salt Lake City | 19 | 8.9 | 44 |
| Vermont | Burlington | 1 | 1.7 | 90 |
| Virg, E | Alexandria | 43 | 8.7 | 47 |
| Virg, W | Roanoke | 10 | 5.1 | 77 |
| Wash, E | Spokane | 4 | 3.1 | 86 |
| Wash, W | Seattle | 37 | 8.3 | 50 |
| W Virg, N | Wheeling | 9 | 10.6 | 26 |
| W Virg, S | Charleston | 5 | 5.2 | 76 |
| Wisc, E | Milwaukee | 31 | 9.9 | 34 |
| Wisc, W | Madison | 9 | 4.2 | 83 |
| Wyoming | Cheyenne | 7 | 14.6 | 10 |