It depends on the context, but if I heard "city of Bountiful" I'd think of the city named "Bountiful" in the US state of Utah. Utah was settled by Mormons, members of the Church of Latter Day Saints. In their holy book, there is a reference to a city called "Bountiful",

You probably mean : "bountiful city". "Bountiful" means plenty, abundant, not worrying about having enough things like food.