The Greater Toronto Area Intergroup coordinates 12 Step work for Alcoholics Anonymous groups in Toronto, with 508 meetings across 231 locations. These meetings are grouped into regions across the GTA, with boundaries provided below.
North
- West of the Don Valley Parkway
- East of Dufferin St.
- North of Lawrence Ave.
- South of Steeles Ave.
North East
- East of the Don Valley Parkway
- North of Lawrence Ave. E.
- South of Steeles Ave.
- West of Pickering
North West
- West of Dufferin St.
- East of Highway 427 and Highway 27
- North of Dixon Rd. and Lawrence Ave. W.
- South of Steeles Ave.
Central
- West of the Don Valley Parkway
- East of Dufferin St.
- South of Lawrence Ave.
East
- East of the Don Valley Parkway
- South of Lawrence Ave.
- West of Pickering.
West
- West of Dufferin St.
- East of Highway 427 and Highway 27
- South of Dixon Rd. and Lawrence Ave. W.
Suburban North
- North of Steeles Ave.
- Toronto boundary line
Suburban Northeast
- North of Steeles Ave.
- East of Highway 48 / Markham Rd.
Suburban East
- East of Scarborough
Suburban Northwest
- West of Highway 427 and Highway 27
- North of Highway 401
- Brampton area
Suburban West
- West of Highway 427 and Highway 27
- Mississauga area