| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,687 | 9.9 | - | |
| Ala, N | Birmingham | 6 | 2.3 | 46 |
| Ala, M | Montgomery | 0 | 0.0 | 66 |
| Ala, S | Mobile | 28 | 35.7 | 5 |
| Alaska | Anchorage | 1 | 1.6 | 57 |
| Arizona | Phoenix | 132 | 27.6 | 8 |
| Ark, E | Little Rock | 2 | 1.4 | 60 |
| Ark, W | Fort Smith | 0 | 0.0 | 66 |
| Cal, N | San Francisco | 56 | 7.8 | 23 |
| Cal, C | Los Angeles | 146 | 8.8 | 19 |
| Cal, E | Sacramento | 7 | 1.1 | 62 |
| Cal, S | San Diego | 193 | 65.1 | 2 |
| Colorado | Denver | 18 | 4.4 | 38 |
| Conn | New Haven | 5 | 1.5 | 59 |
| Delaware | Wilmington | 0 | 0.0 | 66 |
| D. C. | Washington | 138 | 265.9 | 1 |
| Fla, N | Pensacola | 20 | 13.5 | 14 |
| Fla, M | Tampa | 134 | 16.7 | 12 |
| Fla, S | Miami | 232 | 41.5 | 4 |
| Ga, N | Atlanta | 32 | 6.8 | 30 |
| Ga, M | Macon | 4 | 2.3 | 46 |
| Ga, S | Savannah | 35 | 26.9 | 9 |
| Hawaii | Honolulu | 12 | 10.1 | 17 |
| Idaho | Boise | 0 | 0.0 | 66 |
| Ill, N | Chicago | 62 | 7.2 | 28 |
| 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 | 2.0 | 52 |
| 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 | 2 | 1.0 | 64 |
| Ken, W | Louisville | 0 | 0.0 | 66 |
| La, E | New Orleans | 70 | 42.0 | 3 |
| La, M | Baton Rouge | 5 | 7.4 | 27 |
| La, W | Shreveport | 17 | 8.4 | 20 |
| Maine | Portland | 6 | 4.8 | 35 |
| Maryland | Baltimore | 37 | 7.2 | 28 |
| Mass | Boston | 41 | 6.6 | 32 |
| Mich, E | Detroit | 37 | 5.6 | 34 |
| Mich, W | Grand Rapids | 7 | 2.2 | 50 |
| Minnesota | Minneapolis | 9 | 1.9 | 54 |
| Miss, N | Oxford | 0 | 0.0 | 66 |
| Miss, S | Jackson | 14 | 8.1 | 22 |
| Mo, E | St. Louis | 6 | 2.2 | 50 |
| Mo, W | Kansas City | 5 | 1.8 | 56 |
| Montana | Billings | 4 | 4.5 | 37 |
| Nebraska | Omaha | 0 | 0.0 | 66 |
| Nevada | Las Vegas | 12 | 6.6 | 32 |
| New Hamp | Concord | 0 | 0.0 | 66 |
| N. J. | Newark | 61 | 7.5 | 26 |
| N Mexico | Albuquerque | 32 | 18.4 | 11 |
| N. Y., N | Syracuse | 8 | 2.4 | 45 |
| N. Y., E | Brooklyn | 75 | 10.2 | 16 |
| N. Y., S | Manhattan | 125 | 26.6 | 10 |
| N. Y., W | Buffalo | 22 | 7.8 | 23 |
| N Car, E | Raleigh | 10 | 3.4 | 42 |
| N Car, M | Greensboro | 0 | 0.0 | 66 |
| N Car, W | Asheville | 16 | 6.8 | 30 |
| N Dakota | Fargo | 3 | 4.7 | 36 |
| Ohio, N | Cleveland | 12 | 2.0 | 52 |
| Ohio, S | Cincinnati | 10 | 1.9 | 54 |
| Okla, N | Tulsa | 0 | 0.0 | 66 |
| Okla, E | Muskogee | 0 | 0.0 | 66 |
| Okla, W | Oklahoma City | 4 | 2.3 | 46 |
| Oregon | Portland | 9 | 2.7 | 44 |
| Penn, E | Philadelphia | 41 | 7.8 | 23 |
| Penn, M | Scranton | 0 | 0.0 | 66 |
| Penn, W | Pittsburgh | 5 | 1.3 | 61 |
| R. I. | Providence | 0 | 0.0 | 66 |
| S Car | Columbia | 15 | 3.9 | 40 |
| S Dakota | Sioux Falls | 0 | 0.0 | 66 |
| Tenn, E | Knoxville | 0 | 0.0 | 66 |
| Tenn, M | Nashville | 5 | 2.8 | 43 |
| Tenn, W | Memphis | 6 | 4.1 | 39 |
| Texas, N | Fort Worth | 46 | 8.2 | 21 |
| Texas, E | Tyler | 3 | 1.1 | 62 |
| Texas, S | Houston | 211 | 31.6 | 6 |
| Texas, W | San Antonio | 141 | 28.4 | 7 |
| Utah | Salt Lake City | 5 | 2.3 | 46 |
| Vermont | Burlington | 6 | 10.1 | 17 |
| Virg, E | Alexandria | 77 | 15.6 | 13 |
| Virg, W | Roanoke | 1 | 0.5 | 65 |
| Wash, E | Spokane | 5 | 3.9 | 40 |
| Wash, W | Seattle | 51 | 11.4 | 15 |
| W Virg, N | Wheeling | 0 | 0.0 | 66 |
| W Virg, S | Charleston | 0 | 0.0 | 66 |
| Wisc, E | Milwaukee | 5 | 1.6 | 57 |
| Wisc, W | Madison | 0 | 0.0 | 66 |
| Wyoming | Cheyenne | 0 | 0.0 | 66 |