In the  Gran Consiglio election, there were a total of 954 registered voters in Porza, of which 682 or 71.5% voted. Three blank ballots and 4 null ballots were cast, leaving 675 valid ballots in the election.
The Gran Consiglio election in Porza had 954 registered voters, with 71.5% of them casting their vote.  Three blank ballots and four null ballots were recorded, resulting in 675 valid votes.