St Mary's School serves families in and around Williamstown, Melbourne as a small to medium-sized catholic primary school offering Prep-6.

Primary outcomes appear solid overall, with the latest rating sitting at 7.4.

The school’s recent results show a generally stable pattern rather than a sharp upward or downward trend.

In socio-educational terms, the school has a relatively advantaged profile, with an ICSEA score of 1107 and an ICSEA percentile of 86.

After allowing for ICSEA, state and sector, the school’s results sit close to comparable peers.

Enrolment is around 263, so the school can be described as small to medium-sized.