What Municipalities are Part of the Greater Toronto Area?

Cities and Towns of the Greater Toronto Area

Mississauga Cityscape at Night
••• Wei Fang / Getty Images

If you live in Southern Ontario, chances are you often hear the phrase GTA, or Greater Toronto Area. But what cities and towns are included in the GTA? If you're curious or just want to learn more, below you will find an outline of the cities and towns in the GTA.

Besides all of the neighbourhoods in the amalgamated City of Toronto, when people refer to the Greater Toronto Area they are usually talking about an area which includes the regions of Halton, Peel, York and Durham.

Halton Region

The regional municipality of Halton is the westernmost part of the GTA. According to the official Halton Region website, the approximate population of Halton Region in 2009 was 480,000. Halton Region includes:

Halton is home to the Bruce Trail, Canada’s oldest and longest footpath.

Peel Region

Peel is west of Toronto, and stretches much further north. Although Peel Region has the fewest individual municipalities of the four regions, they are densely populated and still growing:

In terms of attractions and things to do in the region, Mississauga has more than 480 parks and woodlands and picturesque Caledon is situation along the Niagara Escarpment, a UNESCO Biosphere Reserve.

York Region

Sitting North of Toronto, the region of York stretches all the way to Lake Simcoe and includes nine municipalities:

York region is home to over 70 golf courses, the beaches of Lake Simcoe, several conservation areas and the 50-kilometre Lake Simcoe Trail for walking, biking and running.

Durham Region

The eastern side of the GTA, parts of Durham Region are also within the area of Ontario known as the Golden Horseshoe. The Region of Durham includes:

Durham Region is home to more than 350 kilometres of recreational trails and conservation areas as well as parks, winteries and art galleries.

Living and Working in the GTA

It is not uncommon for GTA residents to live in one municipality and work in another, including people who commute both into and out of Toronto daily. In these cases, it's helpful to stay updated on Toronto traffic. But there are also ways to use public transit between the regions, such as GO Transit, and options to connect between the public transportation systems in the GTA.