OK, I overused "skyscraper". I'm thinking of buildings that are 15-20 stories, which would not be included in your chart. You can find them in cities like Madison (WI), Rochester (MN), Superior (WI), Denver (CO), and Philadelphia (PA) as well as Des Moines (IA) and Cleveland (OH). Those are the types of cities I think of when I think of Salem (specifically Rochester, or half a Cleveland). So to me it doesn't seem outrageous that John and Marlena live in a tall building (
but not a skyscraper, my mistake) around other tall buildings in a town that considers itself small.
When I was in Los Angeles, I was staying in Toluca Lake. It had one building that was 23 stories, one that was 17, and another that was around 9 or so. Everything else was short (5-6 stories or fewer). So Salem's downtown is bigger than that. I didn't have time to find out how many international corporations were headquartered there. I didn't see any hospitals, although there were two small clinics.
Perhaps because our verbal terminology for cities and towns isn't standardized, this is getting confusing for some. Is Salem a "small town" or a "small city"?
I live in a small "town" at least per the US department of statistics because it has fewer than 50,000 residents, but more than 5,000. It is defined by Wisconsin as a city, though. I imagine Salem is more like a city about an hour to the south of me, which has just over 50,000 in population (and does in fact have a few 9 and 10 story buildings including some downtown).
From your descriptions, Poirot, I'm guessing you live in a small "town" that's classified as a town or village, which is quite different from what Salem has typically been described as being.
But of course - this all depends on DUH PLOT. They use the small town excuse when it sells their daily plot point, and the same goes for things that suggest Salem is a larger city.