Is it true that is the good witch filmed in a real town based on the following text?

Although set in Middleton, USA, it was filmed in Hamilton and Niagara on the Lake, Ontario in Canada. In the sequel, The Good Witch's Charm, the map on the wall in the police station shows Middleton located northwest of Chicago, in the vicinity of DuPage County. The names of the suburbs and interstates that are west of Chicago can be clearly seen.

[a]. no.
[b]. yes.
[b].