Reduce the list, select first 2 letters of the city:
Listing cities (78 place(s)). Select the City to see the postcode(s):
Listing cities (78 place(s)). Select the City to see the postcode(s):
Position: Postcodes > Australia > South Australia > H.... >
Postcode finder: Australia, List of the cities starting with H. Australia South Australia Postcodes (Desktop version).