In Montréal, in English, we have a downtown but no uptown.
In Montréal, in French, the same region is know as centre ville...the centre of the city.
In Laval, the island city right beside Montréal, when you say you're going to the city it means you're going to Montréal; even though Laval is a city too.

Because Montréal is an island we also have "the South Shore" and "the North Shore" and each has it's specific character. The North Shore is considered rural. The South Shore is considered suburban.