ATA locals
For administrative purposes, the Association is divided into 55 subsystems known as locals. Each local includes teachers employed by one or more school boards.

ATA Locals by District
Calgary City
- Calgary Public Teachers No 38 – teachers employed by Calgary School Division
- Calgary Separate School No 55 – teachers employed by Calgary Roman Catholic Separate School Division
South Central Rockies (formerly Calgary District)
- Canadian Rockies No 59 – teachers employed by Canadian Rockies School Division
- Christ the Redeemer No 29 – teachers employed by Christ the Redeemer Catholic Separate School Division
- Foothills No 16 – teachers employed by Foothills School Division
- Rocky View No 35 – teachers employed by Rocky View School Division
Central
- Association des enseignantes et des enseignants francophones de l’Alberta – teachers employed by
- Black Gold Teachers’ No 8 – teachers employed by Black Gold School Division
- St. Thomas Aquinas Teachers’ No 45 – teachers employed by St Thomas Aquinas Roman Catholic Separate School Division
- Timberline No 9 – teachers employed by Wild Rose School Division
- Wetaskiwin No 18 – teachers employed by Wetaskiwin School Division
Central East
- Aspen View No 7 – teachers employed by Aspen View School Division
- Battle River No 32 – teachers employed by Battle River School Division
- Greater St Paul No 25 – teachers employed by St Paul Education School Division
- Lakeland Catholic Separate No 30 – teachers employed by Lakeland Roman Catholic Separate School Division
- Northern Lights No 15 – teachers employed by Northern Lights School Division
- Park Plains East No 31 – teachers employed by
Central North
- Evergreen No 11 – teachers employed by Grande Yellowhead Public School Division
- Evergreen Catholic No 44 – teachers employed by Evergreen Catholic Separate School Division
- Northern Gateway No 43 – teachers employed by Northern Gateway School Division
- Parkland Teachers’ No 10 – teachers employed by Parkland School Division
- Pembina Hills No 22 – teachers employed by Pembina Hills School Division
- Woodland Rivers No 40 – teachers employed by Living Waters Catholic Separate School Division
Central South
- Chinook's Edge No 17 – teachers employed by Chinook's Edge School Division
- Clearview Teachers No 33 – teachers employed by Clearview School Division
- Red Deer Catholic No 80 – teachers employed by Red Deer Catholic Separate School Division
- Red Deer City No 60 – teachers employed by Red Deer School Division
- Wolf Creek No 3 – teachers employed by Wolf Creek School Division
Edmonton McMurray
- Edmonton Catholic Teachers No 54 – teachers employed by Edmonton Catholic Separate School Division
- Edmonton Public Teachers No 37 – teachers employed by Edmonton School Division
- Fort McMurray No 48 – teachers employed by
Central Prairie Sky (formerly known as Edmonton District)
- Elk Island No 28 – teachers employed by Elk Island Public School Division
- Elk Island Catholic Teachers No 21 – teachers employed by Elk Island Catholic Separate School Division
- Greater St Albert Catholic No 23 – teachers employed by Greater St Albert Roman Catholic Separate School Division
- St Albert Public Teachers Local No 73 – teachers employed by St Albert School Division
- Sturgeon No 27 – teachers employed by Sturgeon School Division
North West
- Fort Vermilion No 77 – teachers employed by Fort Vermilion School Division
- Grande Prairie and District Catholic Teachers No 42 – teachers employed by Grande Prairie Roman Catholic Separate School Division
- Greater Peace No 13 – teachers employed by
- High Prairie No 62 – teachers employed by High Prairie School Division
- Northern Spirit No 6 – teachers employed by Peace Wapiti School Division
- Northland No 69 – teachers employed by Northland School Division
- Trumpeter No 26 – teachers employed by Grande Prairie School Division
South East
- Grasslands No 34 – teachers employed by Grasslands School Division
- Medicine Hat No 1 – teachers employed by Medicine Hat School Division
- Medicine Hat Catholic Teachers No 39 – teachers employed by Medicine Hat Roman Catholic Separate School Division
- Prairieland No 36 – teachers employed by Prairie Land School Division
- Prairie Rose No 2 – teachers employed by Prairie Rose School Division
- Three Drums of Wheat No 20 – teachers employed by Golden Hills School Division
South West
- Holy Spirit Catholic No 5 – teachers employed by Holy Spirit Roman Catholic Separate School Division
- Horizon No 4 – teachers employed by Horizon School Division
- Lethbridge Public School No 41 – teachers employed by Lethbridge School Division
- Livingstone Range No 14 – teachers employed by Livingstone Range School Division
- Palliser No 19 – teachers employed by Palliser School Division
- Westwind No 12 – teachers employed by Westwind School Division