I think part of how you can judge an American populace is that there are American import shops nearby, which I'm afraid Sheffield and the surrounding area is sorely lacking.
Yeah, we don't have too many of those, well except for the base near Harrogate, of course, but that's like 'mini-America' there - not somewhere that I can go though. Lol! However, I know if I go to this sweet shop, or that deli, I can get Reeses peanut butter cups & things like that. When I first moved here, I thought I must be the only American
living in my town. Now there's Andee & sarahjoyhappy too. But not only them, I end up being surprised at others that I run across as well, & Andee has had some come into the shop too I think, plus I work with another American (there was a third at work who died this week), so we are definitely about. Though maybe not the quantity of population to which you are referring?
I told DH one day - geez, no matter where I go, there's an American there! He said, yeah, I know how that feels.