Greater Toronto and Hamilton Area
Downtown Toronto
Country Canada
Province Ontario
 • Total8,244.42 km2 (3,183.19 sq mi)
 • Total7,281,694
 • Density844/km2 (2,216/sq mi)
 Combined population of the cities of Toronto and Hamilton and the regional municipalities of Halton, Peel, York, and Durham
 • TotalCA$479.758 billion
US$361.642 billion (2019)[1]
Time zoneUTC-5 (EST)
 • Summer (DST)UTC-4 (EDT)
Postal Code
L, M
Area code(s)226, 519, 548, 416, 437, 647, 249, 705, 905, 289, 365

The Greater Toronto and Hamilton Area (GTHA) is a contiguous urban region that is composed of some of the largest cities and metropolitan areas by population in the Canadian province of Ontario. The GTHA consists of the Greater Toronto Area (GTA) and the city of Hamilton. The GTA is Canada's most populous metropolitan area that includes the city of Toronto and the regional municipalities of Halton, Peel, York, and Durham. The GTHA forms the core of a larger urban agglomeration known as the Golden Horseshoe.

Beginning in the late-2000s, the term "Greater Toronto and Hamilton Area" was introduced by a few public bodies[a] to refer to the GTA and the city of Hamilton as a single entity. The population of the combined area is 7,281,694 as of 2021,[5] and is projected to grow to 8.6 million by 2031.[6] The main series of roadways that connects all the areas together (going from Durham to Hamilton) includes highways 401, 427, 403, and the Queen Elizabeth Way. The GTHA has regional public transport served by GO Transit and local service by multiple agencies, which mostly use the Presto card as fare payment.

Municipalities and populations

Census division Population (2016)[5] Population (2021)[5] Change
Toronto 2,731,571 2,794,356 +2.30%
Hamilton 536,917 569,353 +6.04%
Halton 548,435 596,637 +8.79%
Peel 1,381,739 1,451,022 +5.01%
York 1,109,909 1,173,334 +5.71%
Durham 645,862 696,992 +7.92%
Greater Toronto and Hamilton Area 6,954,433 7,281,694 +4.71%

See also


  1. ^ Adopters include the regional transportation planning body Metrolinx,[2] the Ministry of Energy and Infrastructure[3] and the Regional Municipality of Halton.[4]


  1. ^ "Statistics Canada. Table 36-10-0468-01 Gross domestic product (GDP) at basic prices, by census metropolitan area (CMA) (x 1,000,000)". Statistics Canada.
  2. ^ "About Us". Metrolinx Website. Metrolinx.
  3. ^ "Places to Grow: Growth Plan for the Greater Golden Horseshoe" (PDF). Ministry of Public Infrastructure Renewal. 2006. p. 9. Archived from the original (PDF) on 2011-07-06.
  4. ^ "Amendment No. 38 to the Regional Plan (2006)". Regional Municipality of Halton. 2009-12-16. Archived from the original on 2011-07-06. Retrieved 2011-02-10.
  5. ^ a b c Government of Canada, Statistics Canada (2022-02-09). "Select from a list of geographies - Ontario". Retrieved 2022-02-10.
  6. ^ "The Big Move". Metrolinx. 2008. Retrieved 2014-03-12.

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