Greytown residents questioned whether a single Wairarapa mayor would have too big a job, when future governance options were presented at a public meeting earlier this week.
About 90 people turned out to a public meeting at Greytown Town Hall on Tuesday night.
The meeting was one of five being held this week to discuss the councils' preferred option of a Wairarapa unitary authority.
South Wairarapa Mayor Adrienne Staples explained the background to the Wairarapa governance review working party's decision for a single body, which would incorporate regional and district council functions.
Mrs Staples said they were unable to determine what regional council subsidies were received in Wairarapa, as the data was unavailable, and therefore what the impact on rates would be under a unitary authority. One member of the public questioned whether the Local Government Commission would be able determine if the option was viable if those figures were not known. Another person asked whether essential services would be lost under the model.