THE latest My School results were commended by state Education Minister Adrian Piccoli.
He said the results showed that NSW schools were on the right track and many of them were performing at very high levels.
"All NSW school sectors are significantly over-represented among the highest-achieving schools across Australia," Mr Piccoli said. "This is very pleasing news."
NSW government schools represent 39 per cent of the 135 schools across Australia performing substantially above the national average.
The non-government sector accounts for a further 24 per cent of the highest-achieving schools.
"The news that 63 per cent of the highest-performing schools in Australia are in NSW should be welcomed across the community," Mr Piccoli said.
"My focus in three years as minister for education has been to implement evidence-based reforms that will contribute to sustainable improvements in school and student performance."
Mr Piccoli said My School could not show everything there was to know about a school but it offered more transparency and provided consistent and comparable information about important elements that affected school performance.
"We are learning from high-performing school systems in other countries," Mr Piccoli said. "And we will continue to focus on lifting the quality of teaching in schools as this has consistently shown to be the in-school factor that makes the greatest impact on academic performance."