Here is a list of Welsh principal areas by population.
The district system of two-tier local government was abolished in 1996 and replaced by the current system of unitary principal areas.
That was the principal area which she sought, albeit half-heartedly, to attack.
The principal area affected has been the aircraft programme.
That is the area that is being talked about, the principal area.
This is the principal area where public confidence in the police has slipped.
