| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,281 | 7.9 | - | |
| Ala, N | Birmingham | 3 | 1.1 | 70 |
| Ala, M | Montgomery | 0 | 0.0 | 76 |
| Ala, S | Mobile | 0 | 0.0 | 76 |
| Alaska | Anchorage | 9 | 14.0 | 10 |
| Arizona | Phoenix | 71 | 13.0 | 12 |
| Ark, E | Little Rock | 1 | 0.7 | 74 |
| Ark, W | Fort Smith | 12 | 10.2 | 21 |
| Cal, N | San Francisco | 87 | 11.6 | 14 |
| Cal, C | Los Angeles | 205 | 11.6 | 14 |
| Cal, E | Sacramento | 48 | 7.0 | 34 |
| Cal, S | San Diego | 84 | 27.5 | 4 |
| Colorado | Denver | 51 | 11.3 | 17 |
| Conn | New Haven | 10 | 2.9 | 56 |
| Delaware | Wilmington | 2 | 2.5 | 60 |
| D. C. | Washington | 99 | 173.4 | 1 |
| Fla, N | Pensacola | 0 | 0.0 | 76 |
| Fla, M | Tampa | 29 | 3.3 | 50 |
| Fla, S | Miami | 71 | 11.4 | 16 |
| Ga, N | Atlanta | 48 | 9.0 | 27 |
| Ga, M | Macon | 2 | 1.1 | 70 |
| Ga, S | Savannah | 6 | 4.4 | 44 |
| Hawaii | Honolulu | 19 | 15.3 | 8 |
| Idaho | Boise | 14 | 10.4 | 20 |
| Ill, N | Chicago | 99 | 10.9 | 18 |
| Ill, S | East St. Louis | 0 | 0.0 | 76 |
| Ill, C | Springfield | 6 | 2.7 | 57 |
| Ind, N | South Bend | 0 | 0.0 | 76 |
| Ind, S | Indianapolis | 7 | 1.9 | 64 |
| Iowa, N | Cedar Rapids | 12 | 9.1 | 25 |
| Iowa, S | Des Moines | 7 | 4.3 | 46 |
| Kansas | Topeka | 6 | 2.2 | 62 |
| Ken, E | Lexington | 3 | 1.5 | 67 |
| Ken, W | Louisville | 15 | 7.3 | 32 |
| La, E | New Orleans | 28 | 16.4 | 6 |
| La, M | Baton Rouge | 0 | 0.0 | 76 |
| La, W | Shreveport | 0 | 0.0 | 76 |
| Maine | Portland | 5 | 3.9 | 48 |
| Maryland | Baltimore | 31 | 5.7 | 39 |
| Mass | Boston | 41 | 6.4 | 36 |
| Mich, E | Detroit | 42 | 6.3 | 37 |
| Mich, W | Grand Rapids | 1 | 0.3 | 75 |
| Minnesota | Minneapolis | 20 | 4.0 | 47 |
| Miss, N | Oxford | 0 | 0.0 | 76 |
| Miss, S | Jackson | 3 | 1.7 | 65 |
| Mo, E | St. Louis | 14 | 5.0 | 42 |
| Mo, W | Kansas City | 28 | 9.8 | 24 |
| Montana | Billings | 5 | 5.5 | 41 |
| Nebraska | Omaha | 24 | 13.9 | 11 |
| Nevada | Las Vegas | 17 | 7.8 | 31 |
| New Hamp | Concord | 4 | 3.1 | 54 |
| N. J. | Newark | 56 | 6.5 | 35 |
| N Mexico | Albuquerque | 19 | 10.2 | 21 |
| N. Y., N | Syracuse | 15 | 4.4 | 44 |
| N. Y., E | Brooklyn | 0 | 0.0 | 76 |
| N. Y., S | Manhattan | 146 | 29.5 | 3 |
| N. Y., W | Buffalo | 30 | 10.5 | 19 |
| N Car, E | Raleigh | 5 | 1.6 | 66 |
| N Car, M | Greensboro | 2 | 0.8 | 73 |
| N Car, W | Asheville | 13 | 5.0 | 42 |
| N Dakota | Fargo | 2 | 3.2 | 52 |
| Ohio, N | Cleveland | 18 | 3.0 | 55 |
| Ohio, S | Cincinnati | 8 | 1.5 | 67 |
| Okla, N | Tulsa | 0 | 0.0 | 76 |
| Okla, E | Muskogee | 0 | 0.0 | 76 |
| Okla, W | Oklahoma City | 6 | 3.3 | 50 |
| Oregon | Portland | 25 | 7.1 | 33 |
| Penn, E | Philadelphia | 43 | 7.9 | 30 |
| Penn, M | Scranton | 0 | 0.0 | 76 |
| Penn, W | Pittsburgh | 9 | 2.3 | 61 |
| R. I. | Providence | 6 | 5.6 | 40 |
| S Car | Columbia | 6 | 1.5 | 67 |
| S Dakota | Sioux Falls | 3 | 3.9 | 48 |
| Tenn, E | Knoxville | 6 | 2.6 | 58 |
| Tenn, M | Nashville | 5 | 2.6 | 58 |
| Tenn, W | Memphis | 9 | 5.9 | 38 |
| Texas, N | Fort Worth | 98 | 16.1 | 7 |
| Texas, E | Tyler | 0 | 0.0 | 76 |
| Texas, S | Houston | 106 | 14.6 | 9 |
| Texas, W | San Antonio | 126 | 23.7 | 5 |
| Utah | Salt Lake City | 20 | 8.6 | 28 |
| Vermont | Burlington | 35 | 56.8 | 2 |
| Virg, E | Alexandria | 44 | 8.4 | 29 |
| Virg, W | Roanoke | 2 | 1.0 | 72 |
| Wash, E | Spokane | 16 | 12.0 | 13 |
| Wash, W | Seattle | 43 | 9.1 | 25 |
| W Virg, N | Wheeling | 0 | 0.0 | 76 |
| W Virg, S | Charleston | 3 | 3.2 | 52 |
| Wisc, E | Milwaukee | 7 | 2.2 | 62 |
| Wisc, W | Madison | 0 | 0.0 | 76 |
| Wyoming | Cheyenne | 5 | 10.0 | 23 |