LAKE Macquarie cut by 25 per cent the amount of waste it sent to landfill last financial year.
Council attributed the gain to the city's new weekly kerbside food and garden organics collection service.
"That equates to 22,380 fewer tonnes of waste being sent to landfill every 12 months - a decrease of 111kg for every adult and child who calls Lake Macquarie home," a council spokesperson said.
Council's environmental systems manager Tim Browne said the reductions in landfill waste reflected high levels of support for, and participation in, the revamped waste service.
"Lake Macquarie residents have demonstrated their commitment to sustainability and the importance they place on preserving our natural environment," Mr Browne said.