I bet you could ask 100 people what the "main city" in the US was and none of them would say D.C. In general the U.S. seems varied enough that a single score i

I bet you could ask 100 people what the "main city" in the US was and none of them would say D.C. In general the U.S. seems varied enough that a single score isn't really meaningful... There's a pretty big difference between Seattle and rural Mississippi.