And part of the problem in the US is that the US census has a very binary definition: urban and rural. Myself and two neighbors live on about 100 acres (not counting adjacent conservation land). We're considered urban. because we're about an hour drive of a fairly large city.

But a lot of people will pop up and say that 80% of the US is urban with the implication that 20% of people are living in the back of beyond in Wyoming and it's simply not true.