| DISTRICT | NAME | HEADQUARTERS CITY |
| Ala, M | Alabama, Middle | Montgomery |
| Ala, N | Alabama, Northern | Birmingham |
| Ala, S | Alabama, Southern | Mobile |
| Alaska | Alaska | Anchorage |
| Arizona | Arizona | Phoenix |
| Ark, E | Arkansas, Eastern | Little Rock |
| Ark, W | Arkansas, Western | Fort Smith |
| Cal, C | California, Central | Los Angeles |
| Cal, E | California, Eastern | Sacramento |
| Cal, N | California, Northern | San Francisco |
| Cal, S | California, Southern | San Diego |
| Colorado | Colorado | Denver |
| Conn | Connecticut | New Haven |
| Delaware | Delaware | Wilmington |
| Fla, M | Florida, Middle | Tampa |
| Fla, N | Florida, Northern | Pensacola |
| Fla, S | Florida, Southern | Miami |
| Ga, M | Georgia, Middle | Macon |
| Ga, N | Georgia, Northern | Atlanta |
| Ga, S | Georgia, Southern | Savannah |
| Hawaii | Hawaii | Honolulu |
| Idaho | Idaho | Boise |
| Ill, C | Illinois, Central | Springfield |
| Ill, N | Illinois, Northern | Chicago |
| Ill, S | Illinois, Southern | East St. Louis |
| Ind, N | Indiana, Northern | South Bend |
| Ind, S | Indiana, Southern | Indianapolis |
| Iowa, N | Iowa, Northern | Cedar Rapids |
| Iowa, S | Iowa, Southern | Des Moines |
| Kansas | Kansas | Topeka |
| Ken, E | Kentucky, Eastern | Lexington |
| Ken, W | Kentucky, Western | Louisville |
| La, E | Louisiana, Eastern | New Orleans |
| La, M | Louisiana, Middle | Baton Rouge |
| La, W | Louisiana, Western | Shreveport |
| Maine | Maine | Portland |
| Maryland | Maryland | Baltimore |
| Mass | Massachusetts | Boston |
| Mich, E | Michigan, Eastern | Detroit |
| Mich, W | Michigan, Western | Grand Rapids |
| Minnesota | Minnesota | Minneapolis |
| Miss, N | Mississippi, Northern | Oxford |
| Miss, S | Mississippi, Southern | Jackson |
| Mo, E | Missouri, Eastern | St. Louis |
| Mo, W | Missouri, Western | Kansas City |
| Montana | Montana | Billings |
| Nebraska | Nebraska | Omaha |
| Nevada | Nevada | Las Vegas |
| New Hamp | New Hampshire | Concord |
| N. J. | New Jersey | Newark |
| N Mexico | New Mexico | Albuquerque |
| N. Y., E | New York, Eastern | Brooklyn |
| N. Y., N | New York, Northern | Syracuse |
| N. Y., S | New York, Southern | Manhattan |
| N. Y., W | New York, Western | Buffalo |
| N Car, E | North Carolina, Eastern | Raleigh |
| N Car, M | North Carolina, Middle | Greensboro |
| N Car, W | North Carolina, Western | Asheville |
| N Dakota | North Dakota | Fargo |
| Ohio, N | Ohio, Northern | Cleveland |
| Ohio, S | Ohio, Southern | Cincinnati |
| Okla, E | Oklahoma, Eastern | Muskogee |
| Okla, N | Oklahoma, Northern | Tulsa |
| Okla, W | Oklahoma, Western | Oklahoma City |
| Oregon | Oregon | Portland |
| Penn, E | Pennsylvania, Eastern | Philadelphia |
| Penn, M | Pennsylvania, Middle | Scranton |
| Penn, W | Pennsylvania, Western | Pittsburgh |
| R. I. | Rhode Island | Providence |
| S Car | South Carolina | Columbia |
| S Dakota | South Dakota | Sioux Falls |
| Tenn, E | Tennessee, Eastern | Knoxville |
| Tenn, M | Tennessee, Middle | Nashville |
| Tenn, W | Tennessee, Western | Memphis |
| Texas, E | Texas, Eastern | Tyler |
| Texas, N | Texas, Northern | Fort Worth |
| Texas, S | Texas, Southern | Houston |
| Texas, W | Texas, Western | San Antonio |
| Utah | Utah | Salt Lake City |
| Vermont | Vermont | Burlington |
| Virg, E | Virginia, Eastern | Alexandria |
| Virg, W | Virginia, Western | Roanoke |
| D. C. | Washington, D.C. | Washington |
| Wash, E | Washington, Eastern | Spokane |
| Wash, W | Washington, Western | Seattle |
| W Virg, N | West Virginia, Northern | Wheeling |
| W Virg, S | West Virginia, Southern | Charleston |
| Wisc, E | Wisconsin, Eastern | Milwaukee |
| Wisc, W | Wisconsin, Western | Madison |
| Wyoming | Wyoming | Cheyenne |
| Districts outside the 50 states: | ||
| Guam | Guam | |
| N Mar Is | Northern Mariana Islands | |
| Puer Rico | Puerto Rico | |
| Virgin Is | Virgin Islands |