What Is ICSEA? A Plain-English Guide for Parents

If you have ever looked at the My School website, you have seen a four-digit number next to every school called ICSEA. It is one of the most useful and most misunderstood figures in Australian education.

What ICSEA measures

ICSEA stands for the Index of Community Socio-Educational Advantage. It was created by ACARA (the Australian Curriculum, Assessment and Reporting Authority) so that schools serving similar communities could be compared fairly.

It is built from information about the students' families, not about the school's teachers or programs:

• Parents' occupations
• Parents' education levels
• The school's geographical location (remoteness)
• The proportion of Indigenous students

ACARA combines these into a single scale with a median of 1000 and a standard deviation of 100. Roughly two-thirds of Australian schools sit between 900 and 1100.

What a "good" ICSEA is

There is no good or bad ICSEA, because it is a description of a community rather than a judgement of a school. That said, here is how to read the scale:

Why ICSEA matters when choosing a school

ICSEA is the single strongest predictor of a school's average NAPLAN and senior results. That is not because advantaged families buy better teaching; it is because children whose parents have higher education and professional occupations arrive at school with more vocabulary, more books at home and more support. The school then builds on that base.

So when two schools have similar results but very different ICSEA values, the lower-ICSEA school is almost certainly doing more for each student. That "value added" is the thing you actually want to know about.

How we use ICSEA in the Success Index

ICSEA is 50% of our Success Index because it is published for virtually every school and because it predicts results so reliably. But we deliberately pair it with other signals (teacher resourcing, enrolment growth, ICSEA trend) and we publish the full breakdown on every school page so you can see what is driving a score.

Common misreadings

• "High ICSEA means great teachers." No. It means advantaged families. The teaching may also be great, but ICSEA cannot tell you that.
• "Low ICSEA means avoid." Many low-ICSEA schools produce exceptional growth. Look at NAPLAN gain and talk to the principal.
• "ICSEA is the school's ranking." It is one input. Our rankings use it alongside other factors, and other ranking sites weight it differently.

Where to see it

Every school page on this site shows ICSEA, its national percentile, and the distribution of students across the four socio-educational advantage (SEA) quarters. Use the compare tool to put several schools side by side.