"Younger people carry out much of their lives online and online voting will make it easier for this demographic to vote," she said.
Online voting would also appeal to many older voters judging by submissions made to the Long Term Plan.
Almost a third of submissions lodged by people aged over 66 were made online.
Ms Madden said the Masterton district has a lot of non-resident ratepayers - people who own property in the district, but live elsewhere.
"Return rates for these voters are traditionally low," she said.
"Online voting would make it easier and more convenient for them to vote."
The other councils that registered an interest in the trial are Rotorua, Matamata-Piako, Horowhenua, Porirua, Wellington, Marlborough, Selwyn, Christchurch and Dunedin.
If the trial goes ahead and works well it is likely Local Government New Zealand will roll out online voting across the country in future elections.
Masterton District Council's confirmation of its intention to participate in the trial means Cabinet will now make a decision on which councils will be allowed to be part of the trial and by early December will decide whether a trial should go ahead.
As far as costs are concerned those would be shared proportionately across elections held in the Masterton district being the council election, Wairarapa District Health Board, Masterton Trust Lands Trust, Masterton Licensing Trust, Greater Wellington Regional Council and the Trimble Foundation.
It is estimated the cost of next year's election in Masterton district would rise by $60,000 with the inclusion of online voting, of which $21,466 would be the cost to Masterton District Council providing all the other organisations involved in the election came to the party.
