The numbers that tell Victoria's school crisis story: underfunding, overcrowding and a widening NAPLAN gap

Victorian state schools are teaching an average of 26.4 students per primary classroom — the highest figure recorded since the Australian Curriculum, Assessment and Reporting Authority began collecting comparable data in 2018. The figure, drawn from the 2025 National School Statistics Collection released last month, lands at a moment when the Allan government is already under pressure over housing density and infrastructure funding, and when families across Melbourne's growth corridors are watching new estates fill up faster than the classrooms meant to serve them.

The timing is not incidental. Victoria is in the middle of a secondary school building blitz — 13 new schools opened between 2023 and 2025 under the $2.1 billion Schools Capital Program — yet enrolment growth, particularly in the south-eastern and northern fringe councils of Casey, Wyndham and Whittlesea, is outpacing construction by a ratio the Department of Education's own infrastructure office pegged at roughly 1.3 to 1 as of March 2026. Put plainly: the state is building, but not fast enough.

The postcode gap that won't close

NAPLAN results published in February 2026 sharpened an argument educators have been making for years. The gap in Year 5 numeracy scores between students at schools in Melbourne's inner suburbs — think Carlton, Fitzroy North, South Yarra — and those in outer-growth corridors like Cranbourne East and Hoppers Crossing sits at 47 standardised points. That is roughly equivalent to 18 months of learning. The gap was 41 points in 2022. It is getting wider, not narrower.

At Haileybury's Berwick campus and private colleges along the Monash Freeway corridor, Year 9 reading scores cluster well above the national mean. Fifteen kilometres west, at several government secondaries in the Frankston local government area, median scores sit 38 points below the state average. Researchers at the Mitchell Institute at Victoria University, whose Footscray campus sits less than five kilometres from the CBD, released a working paper in May 2026 arguing the divergence is driven less by teacher quality — which is broadly consistent across sectors — and more by the concentration of complex-needs students in under-resourced schools and the ongoing churn of early-career teachers out of high-demand postcodes within three years of graduation.

The teacher retention figure is pointed. According to the Victorian Institute of Teaching's 2025 workforce snapshot, 34 per cent of teachers who registered between 2020 and 2022 were no longer working in Victorian schools by the end of 2025. In schools classified as Category 1 under the Disability Inclusion Profile — those carrying the highest concentrations of students with additional needs — the attrition figure climbed to 41 per cent over the same period.

University pipelines and the $16,000 question

The school funding squeeze connects directly to what happens at the other end of the education pipeline. Undergraduate enrolments at Victoria's public universities fell 4.2 per cent in 2025, the second consecutive annual decline, according to the Department of Education, Skills and Employment's higher education data released in April 2026. Domestic student numbers dropped most sharply in education degrees — a 7.1 per cent fall at the University of Melbourne alone — raising the prospect that the teacher shortage compounds itself over the coming decade.

The cost barrier is part of the story. A standard four-year Bachelor of Education at RMIT University on Swanston Street now carries a Commonwealth-supported student contribution of approximately $16,200 per year under the 2023 revised funding clusters, putting the total degree cost at around $64,800 before HECS indexation. That indexation — which ran at 3.9 per cent in June 2025 — is itself a source of ongoing political friction, particularly for graduates entering the public school system on a starting salary of $76,300.

The Allan government has promised a response to the infrastructure gap before the end of the third quarter of 2026, with Education Minister Ben Carroll flagging a revised growth-area school funding formula in budget supplementary hearings last month. Families in Wyndham Vale and Clyde North who are enrolling children for 2027 should check the Department of Education's School Zone Finder before the July 28 enrolment deadline — zone boundaries in three Casey growth precincts changed in January 2026, and the department confirmed to this masthead that at least two further boundary reviews are scheduled before the end of the calendar year.