Ontario counties have had varied histories. A number of counties, such as Ontario County and Toronto County, have long ago disappeared as the province grew. Through past redistribution schemes some were amalgamated while others gave up territory which became distinctly separate counties. For example, Wellington County gave rise to parts of Dufferin. That happened over one hundred years ago, but even today, Dufferin and Wellington share many services. Such redistribution and amalgamation still goes on even today
Along with county sub-divisions, the province also has administrative districts, hence the name of this category is Counties and Districts. Parry Sound District is an example of a district. .
At the time of this writing, Ontario had 39 remaining county or district sub-divisions. Through more recent reorganization and in a few instances of amalgamation, a number of Ontario counties became the parents of newer administrative areas known as Regional Municipalities. For exampl- Category ID : 181874