Collie Senior High School has the following Houses:
| Muja | Miss Thomson | Red with black trim |
| Wellington | Mrs Cole | Green with yellow trim |
| Griffin | Mr Ireland | Yellow with red trim |
| Phoenix | Mrs Ienco | Blue with yellow trim |
Our House system helps foster your child’s sense of belonging at school. Being a House member develops team and school spirit through competition in a range of areas such as sporting and academic pursuits.
Our House Leaders play an important role in your child’s life at school. They play a counseling role and help with personal, peer, discipline and emotional issues that may arise from time to time.