The annual Local Government NSW conference in Sydney last week supported a motion by council which called on the state government to review the progress of the 20 new councils formed as a result of forced mergers in 2016.

According to Cootamundra-Gundagai, some of these councils have made some "extraordinary advances", but challenges remain for others.

"For Cootamundra-Gundagai Regional Council, there is still considerable work to be done on harmonising cultures, systems and processes," the council told the conference.

"As a result of the merger, CGRC is facing a large ongoing financial deficit.

"For amalgamated councils there is a feeling of abandonment by the NSW government which, in some instances, leaves amalgamated councils struggling to survive."

The motion said a government review looking at both the benefits and disadvantages of the forced mergers, was "a matter of good business practice".

Cootamundra-Gundagai mayor Abb McAlister said the council was again trying to get a response from the government after a similar call at last year's conference.

"If you do something in a business to change it, then 12 months on you would come back to look at it to see if it was working. Well, we've had no local government minister come near us and we've been requesting they come down and talk to us," Cr McAlister said.

"We also want an independent investigate into the mergers.

"We want them to look into the pitfalls and any benefits, but from our point of view, there has probably been more pitfalls. One of our main concerns is our financial sustainability."

Cr McAllister is supporting a NSW Labor call for a plebiscite to be held on the forced council mergers.

In what could be seen by some as a shout into a cavern with another state election three years away, Labor Shadow Minister for Local Government Greg Warren this week promised that Labor will give communities across NSW the option of holding a plebiscite on the forced mergers inflicted on their local councils by the Liberals and Nationals.

"Labor will continue to oppose any more forced council mergers or demergers," Labor Shadow Minister for Local Government Greg Warren said last week.

Supporting the move Cr McAllister said a plebiscite should have happened before the forced mergers.

"It should've been done by the present government before any previous merger," Cr McAllister said.

"We had community clubs packed with people not wanting (the mergers) but they didn't listen.

"In a democratic world the people should have had a say in the first place," Cr McAllister added.

Mayor of Hilltops council, which is the the result of the mergers of Boorowa, Young and Harden councils, Brian Ingram says he would align his views with the majority of the community if a plebiscite was ever held.

"Like all big issues, there are going to be people for and against each possible outcome".

"As Mayor, I would support the decision of the majority of the community," he added.