Amalgamation of Toronto
Forest Hill and Swansea were annexed by the City of Toronto, Leaside was merged with the township of East York to become the Borough of East York. Weston was combined with the Township of York to form the Borough of York. The Village of Long Branch and the towns of Mimico and New Toronto merged with the township of Etobicoke to form the Borough of Etobicoke. North York township was promoted to the Borough of North York. Scarborough was also transformed into a borough.Amalgamation occurred in 1998 when the regional municipality of Metropolitan Toronto and its six constituent municipalities – East York, Etobicoke, North York, Scarborough, York, and the City of Toronto (1834) were dissolved by an act of the Government of Ontario. A new single municipality called the City of Toronto (colloquially dubbed the "megacity") was formed, replacing all seven governments. The expanded city became the fifth most populous municipality in North America, behind Mexico City, New York City, Los Angeles and Chicago; it later surpassed Chicago in population.
Municipal government of Toronto
Change to the legal structure came in 1954, with the creation of the Municipality of Metropolitan Toronto (known more popularly as "Metro") in 1954. This new regional government, which encompassed Toronto and the smaller communities of East York, Etobicoke, Forest Hill, Leaside, Long Branch, Mimico, New Toronto, North York, Scarborough, Swansea, Weston and York, was created by the Government of Ontario to support suburban growth. This new municipality could borrow money on its own for capital projects and it received taxes from all municipalities including Toronto, which meant that the Toronto tax base was now available to support the suburban growth. The new regional government built highways, water systems and public transit, while the thirteen townships, villages, towns, and cities continued to provide some local services to their residents. To manage the yearly upkeep of the new infrastructure, the new regional government levied its own property tax, collected by the local municipalities.