
| Section 1 | South Central California | |
| Section 2 | Arizona, Southern California and Clark County, Nevada | |
| Section 4 | Northern California, Hawaii and Nevada except Clark County | |
| Section 8 | Alaska, Oregon and Western Washington | |
| Section 21 | Iowa | |
| Section 23 | Minnesota, North Dakota and South Dakota | |
| Section 26 | Nebraska | |
| Section 27 | Wisconsin | |
| Section 30 | Colorado and Wyoming | |
| Section 31 | Northern Indiana | |
| Section 32 | Oklahoma | |
| Section 33 | Arkansas | |
| Section 34 | Kansas | |
| Section 35 | Western Missouri | |
| Section 40 | New Mexico and Western Texas | |
| Section 41 | North Central Texas | |
| Section 43 | Southern Texas | |
| Section 44 | Eastern Texas | |
| Section 45 | Louisiana and Mississippi | |
| Section 46 | Southern Indiana | |
| Section 47 | Western Illinois | |
| Section 49 | Eastern Missouri and the following counties in Illinois: Alexander, Bond, Clinton, Fayette, Franklin, Jackson, Jefferson, Johnson, Madison, Marion, Massac, Monroe, Perry, Pulaski, Randolph, St. Clair, Union, Washington and Williamson | |
| Section 50 | Eastern Illinois | |
| Section 51 | Northern Illinois | |
| Section 53 | Western Michigan | |
| Section 55 | Eastern Michigan and Upper Peninsula | |
| Section 56 | Western Ohio | |
| Section 59 | Eastern Ohio | |
| Section 61 | West Virginia except for Brooke, Hancock, Marshall and Ohio counties. | |
| Section 64 | Northwestern Pennsylvania | |
| Section 65 | Brooke, Hancock, Marshall, and Ohio counties in West Virginia and Beaver, Greene, and the part of Allegheny and Washington counties west of 79 degrees 59 minutes longitude in Pennsylvania. | |
| Section 66 | Cambria, Fayette, Indiana, Somerset, Westmoreland, and the part of Allegheny and Washington counties east of 79 degrees 59 minutes longitude in Pennsylvania. | |
| Section 67 | Eastern and Central Kentucky | |
| Section 68 | Eastern Tennessee | |
| Section 69 | Alabama | |
| Section 70 | Western Kentucky and Western Tennessee | |
| Section 71 | Southern Tip of Florida: Melbourne to Miami | |
| Section 73 | Central Florida: I-4 Corridor | |
| Section 75 | Northern & Northwest Florida & South Georgia | |
| Section 76 | Central & Northern Georgia including Macon | |
| Section 77 | South Carolina & Southeast Georgia including Savannah & Statesboro | |
| Section 79 | Central and Western North Carolina | |
| Section 80 | Eastern North Carolina | |
| Section 81 | Southwestern Virginia | |
| Section 82 | Northern and Central Virginia | |
| Section 83 | Eastern and South Eastern Virginia | |
| Section 85 | DC and Eastern Maryland | |
| Section 86 | Western Maryland | |
| Section 87 | Central New York - Onondaga, Oswego, Cayuga, Seneca, Schuyler, Tompkins, Chemung, Tioga, Broome, Chenango, Cortland, Madison, Oneida, Herkimer, Lewis and Jefferson counties | |
| Section 88 | Eastern Upstate New York | |
| Section 89 | Western Upstate New York | |
| Section 90 | Central Pennsylvania | |
| Section 91 | Northeastern Pennsylvania | |
| Section 92 | Delaware and Southeastern Pennsylvania | |
| Section 94 | Maine, New Hampshire and Vermont | |
| Section 96 | Connecticut, Massachusetts, and Rhode Island and Providence Plantations | |
| Section 97 | Long Island and the New York City Metropolitan Area | |
| Section 98 | Puerto Rico | |
| Section 101 | Northern Counties of New Jersey (Bergen, Passaic, Sussex, Warren, Hudson, Essex & Morris). | |
| Section 102 | Southern Counties of New Jersey (Union, Somerset, Hunterdon, Mercer, Middlesex, Monmouth, Ocean, Burlington, Camden, Gloucester, Salem, Cumberland, Cape May, and Atlantic). | |
Join APO USA on the most widely used Social media group...Facebook! Become a fan today by ...more >
Interested in keeping in touch with APO and our chapters? Stay connected by following us o...more >
Want to be a leader, become a friend and promote service? Get involved in Alpha Phi ...more >