- Ada, OK — 42 chapters
- Altus, OK — 27 chapters
- Alva, Oklahoma, OK — 49 chapters
- Arapaho, Oklahoma, OK — 58 chapters
- Ardmore, OK — 40 chapters
- Bartlesville, OK — 26 chapters
- Beaver, Oklahoma, OK — 64 chapters
- Beggs, Oklahoma, OK — 65 chapters
- Bernice, Oklahoma, OK — 59 chapters
- Bethany, Oklahoma, OK — 90 chapters
- Big Cabin, Oklahoma, OK — 54 chapters
- Bixby, OK — 14 chapters
- Boise, Idaho, OK — 161 chapters
- Bokchito, Oklahoma, OK — 61 chapters
- Bristow, OK — 22 chapters
- Broken Arrow, OK — 38 chapters
- Broken Bow, OK — 29 chapters
- Cache, Oklahoma, OK — 22 chapters
- Caddo, Oklahoma, OK — 51 chapters
- Calera, Oklahoma, OK — 64 chapters
- Carnegie, Oklahoma, OK — 65 chapters
- Carney, OK — 17 chapters
- Catoosa, Oklahoma, OK — 82 chapters
- Chandler, Oklahoma, OK — 122 chapters
- Chickasha, OK — 2 chapters
- Claremore, Oklahoma, OK — 114 chapters
- Clinton, Oklahoma, OK — 98 chapters
- Coalgate, OK — 47 chapters
- Collinsville, OK — 34 chapters
- Commerce, OK — 27 chapters
- Cushing, OK — 23 chapters
- Davenport, Oklahoma, OK — 53 chapters
- Davis, OK — 13 chapters
- Del, OK — 27 chapters
- Dickson, Oklahoma, OK — 72 chapters
- Drumright, Oklahoma, OK — 101 chapters
- Duncan, Oklahoma, OK — 172 chapters
- Durant, Oklahoma, OK — 76 chapters
- Edmond, OK — 23 chapters
- El Reno, OK — 58 chapters
- Elgin, Oklahoma, OK — 82 chapters
- Elmore, OK — 17 chapters
- Enid, Oklahoma, OK — 160 chapters
- Eufaula, Oklahoma, OK — 130 chapters
- Gage, Oklahoma, OK — 54 chapters
- Glenpool, OK — 13 chapters
- Granite, Oklahoma, OK — 59 chapters
- Grove, Oklahoma, OK — 119 chapters
- Guthrie, Oklahoma, OK — 30 chapters
- Guymon, OK — 49 chapters
- Harrah, Oklahoma, OK — 114 chapters
- Healdton, OK — 37 chapters
- Hennessey, Oklahoma, OK — 68 chapters
- Hobart, Oklahoma, OK — 61 chapters
- Holdenville, Oklahoma, OK — 79 chapters
- Hooker, Oklahoma, OK — 62 chapters
- Idabel, OK — 25 chapters
- Jay, Oklahoma, OK — 66 chapters
- Jenks, OK — 25 chapters
- Kellyville, Oklahoma, OK — 57 chapters
- Kingfisher, Oklahoma, OK — 100 chapters
- Lawton, OK — 26 chapters
- Lexington, Oklahoma, OK — 32 chapters
- Lindsay, OK — 25 chapters
- Locust Grove, Oklahoma, OK — 73 chapters
- Lone Grove, Oklahoma, OK — 91 chapters
- Madill, OK — 4 chapters
- Mangum, OK — 14 chapters
- Marlow, Oklahoma, OK — 82 chapters
- McAlester, OK — 57 chapters
- McLoud, Oklahoma, OK — 104 chapters
- Medicine Park, OK — 25 chapters
- Miami, OK — 29 chapters
- Midwest, OK — 48 chapters
- Mooreland, Oklahoma, OK — 78 chapters
- Morris, Oklahoma, OK — 66 chapters
- Mounds, OK — 23 chapters
- Mountain View, OK — 34 chapters
- Muldrow, OK — 47 chapters
- Muskogee, OK — 34 chapters
- Mustang, OK — 35 chapters
- New Cordell, Oklahoma, OK — 66 chapters
- Newcastle, Oklahoma, OK — 74 chapters
- Nichols Hills, OK — 29 chapters
- Nicoma Park, OK — 32 chapters
- Noble, OK — 20 chapters
- North Enid, OK — 0 chapters
- Oilton, Oklahoma, OK — 67 chapters
- Okemah, Oklahoma, OK — 73 chapters
- Oklahoma, OK — 62 chapters
- Okmulgee, Oklahoma, OK — 232 chapters
- Perkins, Oklahoma, OK — 105 chapters
- Perry, Oklahoma, OK — 20 chapters
- Piedmont, OK — 32 chapters
- Pocola, OK — 41 chapters
- Ponca City, Oklahoma, OK — 123 chapters
- Poteau, Oklahoma, OK — 98 chapters
- Prague, Oklahoma, OK — 115 chapters
- Pryor Creek, Oklahoma, OK — 84 chapters
- Purcell, Oklahoma, OK — 37 chapters
- Quapaw, Oklahoma, OK — 60 chapters
- Ralston, OK — 18 chapters
- Roland, OK — 18 chapters
- Sallisaw, OK — 30 chapters
- Sapulpa, OK — 24 chapters
- Sayre, Oklahoma, OK — 78 chapters
- Seiling, Oklahoma, OK — 45 chapters
- Seminole, Oklahoma, OK — 110 chapters
- Sentinel, Oklahoma, OK — 52 chapters
- Shattuck, Oklahoma, OK — 94 chapters
- Shawnee, OK — 29 chapters
- Skiatook, Oklahoma, OK — 93 chapters
- Slaughterville, OK — 1 chapters
- South Coffeyville, Oklahoma, OK — 60 chapters
- Spencer, OK — 24 chapters
- Stillwater, OK — 23 chapters
- Stratford, OK — 11 chapters
- Stroud, Oklahoma, OK — 114 chapters
- Tahlequah, OK — 6 chapters
- Tecumseh, OK — 29 chapters
- Thackerville, OK — 24 chapters
- The Village, Oklahoma, OK — 30 chapters
- Tishomingo, OK — 16 chapters
- Tulsa, OK — 88 chapters
- Vici, Oklahoma, OK — 57 chapters
- Vinita, Oklahoma, OK — 99 chapters
- Walters, Oklahoma, OK — 65 chapters
- Warr Acres, Oklahoma, OK — 218 chapters
- Watonga, OK — 17 chapters
- Waurika, Oklahoma, OK — 67 chapters
- Weatherford, OK — 26 chapters
- Webb, OK — 66 chapters
- Wellston, Oklahoma, OK — 59 chapters
- West Siloam Springs, Oklahoma, OK — 57 chapters
- Wewoka, Oklahoma, OK — 93 chapters
- Wister, Oklahoma, OK — 70 chapters
- Woodward, Oklahoma, OK — 57 chapters
- Yukon, OK — 67 chapters