Both the Save Tumbarumba Shire and Gundagai Council in Exile groups claimed to still have widespread community support after five years of protesting against forced amalgamations.

The NSW Local Government Boundaries Commission on Tuesday last week completed its reports on proposals to demerge Snowy Valleys and Cootamundra-Gundagai Regional councils.

Gundagai Council in Exile spokesman Paul Mara said releasing the reports to the public "would be a very positive thing to improve transparency and help restore confidence in the political process".

"If anything, the support [for demergers] has increased because people have had their fears confirmed from five years ago that rates and costs would go up," he said.

Dr Mara said the protest groups would disappear "if the demerger process begins, otherwise we will keep fighting".

The mayors of both councils said they had not seen the contents of the Boundaries Commission reports.

A spokesperson for Ms Hancock said the NSW government had received the reports and they "will now be closely examined".

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Save Tumbarumba Shire spokesman Neil Hamilton said it was "extremely unlikely" that the reports would be released to the public "in the short term at least".

"[Ms Hancock] has heard our case and since we met her there has been disaster story after disaster story coming out of Snowy Valleys," he said.

"If the government is rational then they will demerger these councils but it's a political situation so we are not sure what is going to happen".

Nationals Cootamundra MP Steph Cooke, whose electorate includes part of Cootamundra-Gundagai Regional Council, has called for one of the reports to be made public.

"The Commission has worked long and hard to produce this report and in the interests of transparency I am calling for it to be made public," she said.

Ms Cooke said communities "have lived with uncertainty on this matter now for almost five years" and "the many people who have given their time and energy to this process" needed to see the findings.

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