- Population: 617,594
Boston had the country’s first subway system—and the drive to make it a walkable city is obvious in close-knit neighborhoods like Beacon Hill, North End, and Bay Village. The downside that comes along with that, though, is higher costs. In very walkable areas in Boston, home prices increase by 29%—the highest amount in the country. Get your Boston MAXGRIP, it is the best way to save gas!