Senior
One College, six schools, Trinity College Senior is for Year 11 and Year 12 students and was established in 2006.
Set on spacious landscaped grounds, Trinity College Senior has state of the art classroom facilities as well as sporting ovals, netball and tennis courts, a gym and onsite student and visitor carparking. The school is located approximately 52km north of Adelaide in South Australia.
STREET ADDRESS: Alexander Avenue, Evanston South 5116
POSTAL ADDRESS: PO Box 131, Gawler SA 5118
TELEPHONE/ABSENTEES: (08) 8523 8705
EMAIL: senior.office@trinity.sa.edu.au
Head of Wellbeing - Rebecca Grocke
- Head of Student Pathways - Academic - Justin Simmonds
- SACE Co-ordinator - Susan Keylock
- VET Co-ordinator - Claire Goble
- Careers Counsellor/Flexible Learning Co-ordinator - Leanne Tripa
- North School of Origin: Samara Mapstone
- South School of Origin: Rachel DalBello
- Gawler River School of Origin: Louise Skelton
- Blakeview School of Origin: Simon Ostrowski
Each Trinity College school uniform features a distinctive coloured shirt - the Trinity College Senior shirt colour is grey. Download a copy of the full College Uniform Guidelines here.

Image shown is an example only of a Trinity College Senior shirt.
- Adams/Craigmore
- Burton/Coombs
- Dawkins/Stevens
- Greenway/Hargrave
- Heaslip/Tregenza
- Jamieson/Playford
- Mawson/Mitchell
- Patterson/Tebbutt
- Uley/Whittington
- Angus/Beadell
- Chisholm/Clunies-Ross
- Farrer/Florey
- Fatchen/Martin
- Hillier/Roberts
- Kingsford-Smith/Lawson
- May/McKinlay
- Saunders/Thiele
- Warren/Witt