Hamish McDouall wants Whanganui to become plastic bag free.
The district's mayor said he was proud of the Whanganui retailers who had ditched single-use plastic bags but he said more could be done to reduce waste in Whanganui.
"Imagine if we were the first district in New Zealand to be fully plastic bag free."
Last week Countdown Victoria Ave got rid of free plastic bags and Mitre 10 Mega will be plastic bag free from July 1 with other big box retailers following.
Read more: Go plastic free in July for planet