Just as there is more than one alcoholic in a group, several groups define a district. AA districts are mostly geographical and are lead by a DCM (District Committee Member). DCMs do things like promote unity between groups, assist GSRs, encourage participation in county service and represent the district at area committee meetings.
| District 105 — Aquebogue – Baiting Hollow – Cutchogue – Fishers Island – Greenport – Jamesport – Mattituck – Manorville – Orient – Ridge – Riverhead – Sound Beach – Southold – Wading River | |
| District 106 — Amagansett – East Hampton – Montauk – Sag Harbor – Shelter Island – Wainscott | |
| District 107 — Bohemia – Holbrook – Holtsville – Lake Ronkonkoma – Medford – Ronkonkoma – Yaphank | |
| District 108 — Centerport – Dix Hills – East Northport – Greenlawn – Northport | |
| District 109 — Babylon – Deer Park – North Babylon – Oak Beach – West Islip | |
| District 110 — Commack – Hauppauge – Kings Park – Nesconset – Saint James – Smithtown | |
| District 111 — East Setauket – Middle Island – Mount Sinai – Port Jefferson – Rocky Point – Setauket – Shoreham – Stony Brook – Terryville | |
| District 112 — Eastport – East Quogue – Hampton Bays – Quoque – Remsenburg – Westhampton Beach | |
| District 113 — Bellport – Brookhaven – Center Moriches – East Moriches – East Patchogue – Mastic Beach – Patchogue – Shirley | |
| District 114 — Hispanic | |
| District 115 — Central Islip – East Islip – Islip – Islip Terrace | |
| District 116 — Amityville – Copiague – Lindenhurst | |
| District 117 — Bay Shore – Brentwood | |
| District 118 — Centereach – Lake Grove – Selden | |
| District 119 — Cold Spring Harbor – Huntington – Huntington Station – Melville – West Neck | |
| District 120 — Bayport – Blue Point – Bohemia – Fire Island – Oakdale | |
| District 121 — Bridgehampton – Southampton – Water Mill |