11 of the 50 weren’t in the city. But it makes sense that most would be in the city. A younger more “go out” crowd lives downtown, tourists go downtown, wealthy business people maintain residences near their offices. The county is where you go to live cheaply and raise your kids in safety. Eating out is expensive for families so it gets done less. So it’s riskier to open a restaurant in a sparsely populated area where going out isn’t a priority.
Personally I don’t even know how a magazine about Baltimore justifies putting anything from Annapolis or HoCo in it anyway.