The members of the Southern Tasmanian Councils Authority are:
- Mayor — Brighton Council
- Mayor — Central Highlands Council
- Mayor — Clarence City Council
- Mayor — Derwent Valley Council
- Mayor — Glamorgan-Spring Bay Council
- Mayor — Glenorchy City Council
- Lord Mayor — Hobart City Council
- Mayor — Huon Valley Council
- Mayor — Kingborough Council
- Mayor — Sorell Council
- Mayor — Southern Midlands Council
- Mayor — Tasman Council
