Depends where you go.
   People are like magnets; they stick to places where other people
   are.

   Cities tend to grow in population density, but suburban and
   rural areas don't grow as fast. Some small cities/towns/villages
   completely disappear, although its uncommon.

   I think if you took away the densely populated areas of the USA
   out of the statistics, it's likely that we wouldn't be so far
   off from Australia.

   But our cities are extremely popular and populated, which I
   think skews the statistics somewhat.