Students at independent and Catholic schools in the Gilmore electorate are $1780 and $1652 better off than those in public schools.
That's what an Australian Education Union (AEU) analysis of the latest ACARA 'My School' data revealed.
The analysis found independent schools in Gilmore receive 12 per cent more Net Recurrent Income [for ongoing operating costs of schools] per student than public schools, while Catholic schools in Gilmore receive 12.9 per cent more per student than public schools.
NSW Teachers Federation president Maurie Mulheron said the figures highlighted the urgent need for fairer funding arrangements for public schools.
He said recently-released My School data shows that public schools in NSW were amongst the lowest-funded in the country.
"When independent and Catholic schools in Gilmore are receiving that much more funding than public schools you know how unfair the system has become," Mr Mulheron said.
"Despite growing enrolments in public schools in Gilmore compared to private schools, the Morrison Government has handed billions of dollars of extra funding to private schools while cutting $14 billion from public school funding.
"The only way to start levelling the playing field is to restore the federal funding that public schools should have received this year and last year.
"Thankfully, Labor has made a commitment to do exactly that if it is elected to government in the federal election, and will boost funding to public schools in Gilmore by additional $21.6 million in the first three years. This works out to over $500,000 for every school."
Mr Mulheron said the figures showed how important it was to restore the $14 billion already cut from public schools.
"Without that investment the resources gaps between public and private schools in Gilmore are only going to increase," he said.
"Public schools in Gilmore educate the vast majority of students from disadvantaged backgrounds and yet they are operating with thousands of dollars less per student than private schools.
"Public schools are also the fastest-growing schools in Gilmore and yet the Commonwealth has stopped providing any funding for capital works.
"Because they get so much recurrent funding, Independent schools are able to spend up to five times as much on buildings and facilities as public schools."