Mayors and general managers will meet in February to discuss the possibility of mergers.

The news comes alongside a survey showing that three in four Tasmanians are for the amalgamation of councils.

Northern Midlands Mayor David Downie said he would support mergers if there was a strongly demonstrated benefit for ratepayers.

It was a similar story from Break O'Day Mayor Mick Tucker, who said his council would only support the concept if ratepayers would pay less to receive the same services.

The council had previously looked at merging with Glamorgan Spring-Bay but a 2008 Local Government Board investigation found a lack of will for change.

Meander Valley Mayor Craig Perkins said his council had not yet discussed the concept but noted that what most concerned councillors was the expected impact on rates and service delivery.

He said he was wary that small towns might lose out from amalgamations.

"We're a low-cost delivery council, so it'd be hard to show where the benefits for Meander Valley would be," he said.

Strongly for mergers was Launceston Mayor Albert van Zetten.

He said it was up to the government to show "true leadership" on the topic and provide firm direction to councils.