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.