The enumeration of Ontario's population was done in a confusing manner, quite a few places were not enumerated as part of their geographic county or district, but rather enumerated with districts or counties created solely for the purpose of enumeration (such as Caldwell County, Bothwell County, Monck County). Some places were enumerated separately one enumeration and as part of another place the next.
The OGW Census Project has done our best to be as accurate as possible with the placement of each census, but for the most part we've stayed within geographic boundaries (for instance instead of finding places listed under Cardwell, Bothwell or Monck you'll find them listed in their geographic counties) and made note of the area with which the place was enumerated.
If you are seeking a specific town, city or village and do not find it listed here it was likely enumerated as part of a township. Use the Ontario Locator to find out which township or county you need.