For the more rural states you need to take a zero off each of these numbers. A town of 1,000 in North Dakota would have shops, a town of 10,000, which would be

For the more rural states you need to take a zero off each of these numbers. A town of 1,000 in North Dakota would have shops, a town of 10,000, which would be the tenth most populous in the state, would have a cinema, and Fargo, with 250k people living in its vicinity? That's your megacity.