| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,842 | 10.0 | - | |
| Ala, N | Birmingham | 3 | 1.1 | 62 |
| Ala, M | Montgomery | 0 | 0.0 | 66 |
| Ala, S | Mobile | 21 | 26.5 | 8 |
| Alaska | Anchorage | 2 | 3.2 | 43 |
| Arizona | Phoenix | 160 | 30.1 | 7 |
| Ark, E | Little Rock | 2 | 1.3 | 60 |
| Ark, W | Fort Smith | 0 | 0.0 | 66 |
| Cal, N | San Francisco | 56 | 7.5 | 25 |
| Cal, C | Los Angeles | 156 | 9.0 | 18 |
| Cal, E | Sacramento | 7 | 1.0 | 63 |
| Cal, S | San Diego | 226 | 75.0 | 2 |
| Colorado | Denver | 19 | 4.3 | 38 |
| Conn | New Haven | 5 | 1.5 | 57 |
| Delaware | Wilmington | 0 | 0.0 | 66 |
| D. C. | Washington | 155 | 270.1 | 1 |
| Fla, N | Pensacola | 14 | 8.9 | 19 |
| Fla, M | Tampa | 124 | 14.2 | 13 |
| Fla, S | Miami | 236 | 38.7 | 3 |
| Ga, N | Atlanta | 27 | 5.2 | 35 |
| Ga, M | Macon | 5 | 2.7 | 45 |
| Ga, S | Savannah | 35 | 26.1 | 9 |
| Hawaii | Honolulu | 14 | 11.4 | 15 |
| Idaho | Boise | 0 | 0.0 | 66 |
| Ill, N | Chicago | 80 | 8.8 | 20 |
| Ill, S | East St. Louis | 0 | 0.0 | 66 |
| Ill, C | Springfield | 0 | 0.0 | 66 |
| Ind, N | South Bend | 0 | 0.0 | 66 |
| Ind, S | Indianapolis | 7 | 1.9 | 55 |
| Iowa, N | Cedar Rapids | 0 | 0.0 | 66 |
| Iowa, S | Des Moines | 0 | 0.0 | 66 |
| Kansas | Topeka | 0 | 0.0 | 66 |
| Ken, E | Lexington | 3 | 1.5 | 57 |
| Ken, W | Louisville | 0 | 0.0 | 66 |
| La, E | New Orleans | 64 | 37.7 | 4 |
| La, M | Baton Rouge | 3 | 4.2 | 39 |
| La, W | Shreveport | 10 | 4.9 | 36 |
| Maine | Portland | 6 | 4.7 | 37 |
| Maryland | Baltimore | 42 | 7.8 | 24 |
| Mass | Boston | 38 | 5.9 | 30 |
| Mich, E | Detroit | 39 | 5.9 | 30 |
| Mich, W | Grand Rapids | 9 | 2.7 | 45 |
| Minnesota | Minneapolis | 11 | 2.2 | 50 |
| Miss, N | Oxford | 0 | 0.0 | 66 |
| Miss, S | Jackson | 12 | 6.7 | 27 |
| Mo, E | St. Louis | 6 | 2.1 | 52 |
| Mo, W | Kansas City | 6 | 2.1 | 52 |
| Montana | Billings | 5 | 5.5 | 33 |
| Nebraska | Omaha | 0 | 0.0 | 66 |
| Nevada | Las Vegas | 12 | 5.7 | 32 |
| New Hamp | Concord | 0 | 0.0 | 66 |
| N. J. | Newark | 70 | 8.2 | 22 |
| N Mexico | Albuquerque | 28 | 15.3 | 12 |
| N. Y., N | Syracuse | 14 | 4.2 | 39 |
| N. Y., E | Brooklyn | 75 | 9.4 | 17 |
| N. Y., S | Manhattan | 123 | 25.0 | 10 |
| N. Y., W | Buffalo | 24 | 8.4 | 21 |
| N Car, E | Raleigh | 8 | 2.5 | 48 |
| N Car, M | Greensboro | 0 | 0.0 | 66 |
| N Car, W | Asheville | 17 | 6.7 | 27 |
| N Dakota | Fargo | 5 | 7.9 | 23 |
| Ohio, N | Cleveland | 12 | 2.0 | 54 |
| Ohio, S | Cincinnati | 8 | 1.5 | 57 |
| Okla, N | Tulsa | 0 | 0.0 | 66 |
| Okla, E | Muskogee | 0 | 0.0 | 66 |
| Okla, W | Oklahoma City | 4 | 2.2 | 50 |
| Oregon | Portland | 12 | 3.5 | 42 |
| Penn, E | Philadelphia | 37 | 6.8 | 26 |
| Penn, M | Scranton | 0 | 0.0 | 66 |
| Penn, W | Pittsburgh | 5 | 1.3 | 60 |
| R. I. | Providence | 0 | 0.0 | 66 |
| S Car | Columbia | 15 | 3.7 | 41 |
| S Dakota | Sioux Falls | 0 | 0.0 | 66 |
| Tenn, E | Knoxville | 1 | 0.4 | 65 |
| Tenn, M | Nashville | 5 | 2.6 | 47 |
| Tenn, W | Memphis | 8 | 5.3 | 34 |
| Texas, N | Fort Worth | 40 | 6.6 | 29 |
| Texas, E | Tyler | 3 | 1.0 | 63 |
| Texas, S | Houston | 225 | 31.6 | 6 |
| Texas, W | San Antonio | 178 | 34.0 | 5 |
| Utah | Salt Lake City | 4 | 1.8 | 56 |
| Vermont | Burlington | 7 | 11.4 | 15 |
| Virg, E | Alexandria | 81 | 15.7 | 11 |
| Virg, W | Roanoke | 0 | 0.0 | 66 |
| Wash, E | Spokane | 4 | 3.0 | 44 |
| Wash, W | Seattle | 63 | 13.5 | 14 |
| W Virg, N | Wheeling | 0 | 0.0 | 66 |
| W Virg, S | Charleston | 0 | 0.0 | 66 |
| Wisc, E | Milwaukee | 8 | 2.5 | 48 |
| Wisc, W | Madison | 0 | 0.0 | 66 |
| Wyoming | Cheyenne | 0 | 0.0 | 66 |