| District | City | # Criminal Investigators | Per Capita | Rank |
| U.S. | 2,602 | 9.2 | - | |
| Ala, N | Birmingham | 4 | 1.5 | 58 |
| Ala, M | Montgomery | 0 | 0.0 | 65 |
| Ala, S | Mobile | 23 | 29.1 | 6 |
| Alaska | Anchorage | 2 | 3.2 | 42 |
| Arizona | Phoenix | 137 | 26.7 | 8 |
| Ark, E | Little Rock | 3 | 2.0 | 53 |
| Ark, W | Fort Smith | 0 | 0.0 | 65 |
| Cal, N | San Francisco | 52 | 7.0 | 23 |
| Cal, C | Los Angeles | 147 | 8.6 | 19 |
| Cal, E | Sacramento | 5 | 0.8 | 63 |
| Cal, S | San Diego | 195 | 66.0 | 2 |
| Colorado | Denver | 17 | 4.0 | 37 |
| Conn | New Haven | 5 | 1.5 | 58 |
| Delaware | Wilmington | 0 | 0.0 | 65 |
| D. C. | Washington | 151 | 264.0 | 1 |
| Fla, N | Pensacola | 19 | 12.3 | 14 |
| Fla, M | Tampa | 130 | 15.3 | 11 |
| Fla, S | Miami | 209 | 35.2 | 4 |
| Ga, N | Atlanta | 31 | 6.2 | 27 |
| Ga, M | Macon | 4 | 2.2 | 46 |
| Ga, S | Savannah | 33 | 24.8 | 9 |
| Hawaii | Honolulu | 12 | 9.9 | 16 |
| Idaho | Boise | 0 | 0.0 | 65 |
| Ill, N | Chicago | 56 | 6.3 | 26 |
| Ill, S | East St. Louis | 0 | 0.0 | 65 |
| Ill, C | Springfield | 0 | 0.0 | 65 |
| Ind, N | South Bend | 0 | 0.0 | 65 |
| Ind, S | Indianapolis | 7 | 1.9 | 55 |
| Iowa, N | Cedar Rapids | 0 | 0.0 | 65 |
| Iowa, S | Des Moines | 0 | 0.0 | 65 |
| Kansas | Topeka | 0 | 0.0 | 65 |
| Ken, E | Lexington | 3 | 1.5 | 58 |
| Ken, W | Louisville | 0 | 0.0 | 65 |
| La, E | New Orleans | 65 | 38.2 | 3 |
| La, M | Baton Rouge | 3 | 4.2 | 36 |
| La, W | Shreveport | 12 | 5.8 | 31 |
| Maine | Portland | 5 | 3.9 | 38 |
| Maryland | Baltimore | 40 | 7.6 | 21 |
| Mass | Boston | 38 | 6.0 | 29 |
| Mich, E | Detroit | 34 | 5.1 | 33 |
| Mich, W | Grand Rapids | 7 | 2.1 | 49 |
| Minnesota | Minneapolis | 9 | 1.8 | 56 |
| Miss, N | Oxford | 0 | 0.0 | 65 |
| Miss, S | Jackson | 11 | 6.2 | 27 |
| Mo, E | St. Louis | 6 | 2.1 | 49 |
| Mo, W | Kansas City | 6 | 2.1 | 49 |
| Montana | Billings | 5 | 5.5 | 32 |
| Nebraska | Omaha | 0 | 0.0 | 65 |
| Nevada | Las Vegas | 10 | 5.0 | 34 |
| New Hamp | Concord | 0 | 0.0 | 65 |
| N. J. | Newark | 55 | 6.5 | 25 |
| N Mexico | Albuquerque | 26 | 14.3 | 13 |
| N. Y., N | Syracuse | 12 | 3.6 | 40 |
| N. Y., E | Brooklyn | 72 | 9.1 | 18 |
| N. Y., S | Manhattan | 115 | 23.6 | 10 |
| N. Y., W | Buffalo | 22 | 7.7 | 20 |
| N Car, E | Raleigh | 7 | 2.3 | 44 |
| N Car, M | Greensboro | 0 | 0.0 | 65 |
| N Car, W | Asheville | 15 | 6.0 | 29 |
| N Dakota | Fargo | 3 | 4.7 | 35 |
| Ohio, N | Cleveland | 12 | 2.0 | 53 |
| Ohio, S | Cincinnati | 8 | 1.5 | 58 |
| Okla, N | Tulsa | 0 | 0.0 | 65 |
| Okla, E | Muskogee | 0 | 0.0 | 65 |
| Okla, W | Oklahoma City | 4 | 2.2 | 46 |
| Oregon | Portland | 8 | 2.3 | 44 |
| Penn, E | Philadelphia | 38 | 7.0 | 23 |
| Penn, M | Scranton | 0 | 0.0 | 65 |
| Penn, W | Pittsburgh | 5 | 1.3 | 62 |
| R. I. | Providence | 0 | 0.0 | 65 |
| S Car | Columbia | 15 | 3.7 | 39 |
| S Dakota | Sioux Falls | 0 | 0.0 | 65 |
| Tenn, E | Knoxville | 0 | 0.0 | 65 |
| Tenn, M | Nashville | 4 | 2.1 | 49 |
| Tenn, W | Memphis | 5 | 3.3 | 41 |
| Texas, N | Fort Worth | 44 | 7.4 | 22 |
| Texas, E | Tyler | 2 | 0.7 | 64 |
| Texas, S | Houston | 203 | 29.3 | 5 |
| Texas, W | San Antonio | 147 | 28.8 | 7 |
| Utah | Salt Lake City | 4 | 1.8 | 56 |
| Vermont | Burlington | 6 | 9.9 | 16 |
| Virg, E | Alexandria | 76 | 15.0 | 12 |
| Virg, W | Roanoke | 0 | 0.0 | 65 |
| Wash, E | Spokane | 4 | 3.1 | 43 |
| Wash, W | Seattle | 47 | 10.2 | 15 |
| W Virg, N | Wheeling | 0 | 0.0 | 65 |
| W Virg, S | Charleston | 0 | 0.0 | 65 |
| Wisc, E | Milwaukee | 7 | 2.2 | 46 |
| Wisc, W | Madison | 0 | 0.0 | 65 |
| Wyoming | Cheyenne | 0 | 0.0 | 65 |