Figure 4.1 Toronto population by zone, 1850-2010.pdf

Note: Most growth in the Toronto region occurred within the City of Toronto itself until the 1920s. The creation in 1954 of Metropolitan Toronto and its planning board (the MTPB), which exercised extraterritorial jurisdiction over an area twice the size of Metro itself, contained most growth into the 1970s. From the MTPB’s dissolution in 1974 to the province’s enactment of the Growth Plan for the Greater Golden Horseshoe in 2006, virtually all population growth occurred outside Metro Toronto (after 1997, the amalgamated City of Toronto) in the rest of the Greater Toronto and Hamilton Area, and also in the surrounding outer ring of counties and regional municipalities that make up the Greater Golden Horseshoe.https://ir.lib.uwo.ca/shapingthemetropolis/1005/thumbnail.jp