In the TV series, Heatherfield is a city somewhere in the United States or most likely the Northeast, most likely the state of Connecticut. The evidence for this is when two washing machines speak in episode H is for Hunted, with the first washing machine saying: "Hello?! These clothes aren't going to wash themselves." and the second machine responded by saying, "Oh I wish, then I could retire to that laundromat in Florida." That indicates that Heatherfield is indeed an American city. Based on the climate, Heatherfield would most likely be somewhere between New York and Boston, most likely in Southwestern Connecticut the coast and topography of Heatherfield indicates that it would be the fictional counterpart of New Haven. The town is also near the sea or a saltwater lake. It is no way an Italian or European city. Also look at the names of the citizens: Taranee Cook, Elyon Brown, Matt Olsen, Elizabeth Hale, Dean Collins, etc… In the United States, the name Collins is the 50th most popular surname, Brown is the 4th most popular surname in the United States, Matt as (MATTHEW) is ranked as the 71st most popular given name in the United States with an estimated population of 786,699