It is bordered to the south by Ville-Marie, to the west by Outremont, and to the north and east by Rosemont—La Petite-Patrie. Clockwise from the south, it is bounded by Sherbrooke St., University St., Pine Ave. (av. des Pins), Park Ave. (Avenue du Parc), the southward projection of Hutchison St., Hutchison St., Mount Royal Ave (av. Mont-Royal), and the CP railroad tracks.
It has a population of 101,364 and an area of 7.74 km².
The current borough mayor is Helen Fotopulos of Union Montreal.
The borough is divided into three districts (as of 2005):
The borough is divided among the following federal ridings:
It is divided among the following provincial electoral districts:
The borough is largely composed of the well-known Plateau neighbourhood, famous for its bohemian reputation and characteristic architecture. The neighbourhoods of Mile End, Côte Saint-Louis, and Milton-Parc (including the McGill Ghetto) are also located in the borough.