The city's tally forms part of the more than 2.7 billion containers that have been returned across the state since the scheme launched in December 2017.

Last week, Wagga woman Julie Willis used one of the city's two reverse vending machines for the first time to deposit about 35 glass bottles.

"I've always heard about them but never really used one before," Ms Willis said while waiting to use the machine at the Gurwood Street Woolworths.

"Every bit of refund and recycling helps."

Asked about the two-year anniversary and what she would like to see moving forward Ms Willis said "there should be more [return] points in the city".

While it was her first time using one of machines, she had used the St Vinnies bulk container deposit centre on Hammond Avenue, which was launched earlier this year.

"We usually wait until bottles and cans build up at home before going there," she said.

As at November 30, the St Vinnies site in Wagga had processed more than 5.3 million containers since the opening in April.

A Vinnies NSW statement said general public volumes were complemented by partnerships with community groups, schools and businesses.

"Some of which are significant donors, generously forfeiting their 10c refunds to support Vinnies services," the statement reads.

"The Vinnies NSW CDS has seen more than 52 million containers processed across over the counter and automated depot sites since entering the initiative in December 2017."

At the end of its first year, the overall scheme had one billion containers returned across NSW to reduce eligible container litter volume by 44 per cent.

Parliamentary Secretary for the Environment James Griffin said the people of NSW should be commended.

"Return and Earn now has over five million drink containers returned everyday and growing, and an impressive current redemption rate of 67 per cent of eligible drink containers supplied into NSW," Mr Griffin said.

Mr Griffin said there was no doubt that the scheme has "been a great success and has fundamentally changed people's thinking and behavior around litter".

"Equally significant has been the impact Return and Earn has had on charities, schools and community groups, helping 430 official donation partners and countless other groups to fund a range of programs, resources and assistance for communities in need," he said.

This summer, people can opt to donate their 10c refund to 'Bottles for the Bush' to help support fire- and drought-affected communities by donating some of their empty bottles, cans and cartons at any reverse vending machine.

More than $617,000 has been raised for donation partners in the past two years.

"The scheme has brought on so many positives across communities and every bottle returned is a bottle redirected from landfill and a win for the environment," Mr Griffin said.

Scheme coordinator Exchange for Change administers Return and Earn while network operator TOMRA Cleanaway is responsible for running the return point network and meeting collection targets.

The NSW Environment Protection Authority is responsible for regulating the scheme.