kiwiwilly - not exactly.
The big cities have sprawled out into the rural areas... if you look on google maps using the satellite view you can see what I mean.
There are still lots of small towns left that are doing well.
It all depends on the people in the town willing to try something different when the local cash cow leaves or the conditions for the local industry dry up.
Some towns only existed for one or two reasons... and if those reasons leave, the reason for the town goes with it.
-W