Merging municipalities has recently been one of the favourite governmental recreations in Ontario, along with renumbering the highways.
The City of Kawartha Lakes was created in 2001 when the province merged all the municipalities in Victoria County (including the Town of Lindsay), and the Victoria County government, into one organisation.
The merger was not popular, and apparently a plebiscite passed to demerge everything. Since municipalities are “creatures of the province” in Canada, and are totally at the control of the provincial government, the city can’t actually do anything about it without enabling legislation from the province, and so far the province has not acted.
A similar merger took place in other places in Ontario.
The Metropolitan Toronto regional government, and the six city governments under it (the old City of Toronto and the surrounding municipalities of East York, Etobicoke, North York, Scarborough and York), were forcibly merged into a new City of Toronto.
Likewise, the Regional Municipality of Ottawa-Carleton and the municipalities of Nepean, Kanata, Gloucester, Rockcliffe Park, Vanier, and Cumberland, plus the rural townships of West Carleton, Osgoode, Rideau, and Goulbourn, under it were merged into a new City of Ottawa.
Similarly, the Regional Municipality of Hamilton and the municipalities of Hamilton, Ancaster, Dundas, Flamborough, Glanbrook, and Stoney Creek were merged to form a new City of Hamilton.