Despite being assailed with accusations of corruption, incumbent Mayor
Gérald Tremblay led his
Union Montréal party to a third victory, although with reduced standings in city council. Union's seat totals remained firm especially in the boroughs merged into the city in 2002; it retained complete control of eight boroughs and near-complete control of three more.
Vision Montréal, led by former Quebec minister of municipal affairs
Louise Harel, ran a campaign targeting the mayor on ethics. However, its campaign was blindsided by a scandal involving its second-in-command and former leader
Benoit Labonté, who dropped out of the race. Vision increased its council standing but was unable to defeat the mayor. It won complete control of
Mercier–Hochelaga-Maisonneuve and majorities in three other borough councils. Third party
Projet Montréal increased sharply in popularity. An Angus Reid poll shortly prior to the election put its leader
Richard Bergeron neck-and-neck (32%) with the two other main candidates (34% for Harel, 30% for Tremblay). He would finally come in third, but the party increased from just one seat at the previous election to ten council seats, two borough mayors, four borough councillors, and complete control of the borough of
Le Plateau-Mont-Royal. Besides its main issue of public transit and urban planning, the party emphasized ethics, running its campaign on just $200,000.
Mayor of Montreal Composition of city and borough councils Depending on their borough, Montrealers voted for: • Mayor of Montreal • Borough mayor (except in
Ville-Marie, whose mayor is the Mayor of Montreal), who is also a city councillor • A city councillor for the whole borough or for each district, who is also a borough councillor (
Outremont and
L'Île-Bizard–Sainte-Geneviève have no city councillors other than the borough mayor) • Zero, one, or two additional borough councillors for each district ==Seat-by-seat results==