Reduce the list, select first 2 letters of the city:
Listing cities (26 place(s)). Select the City to see the postcode(s):
Listing cities (26 place(s)). Select the City to see the postcode(s):
Position: Postcodes > United Kingdom > Northamptonshire > C.... >
Postcode finder: United Kingdom, List of the cities starting with C. United Kingdom Northamptonshire Postcodes (Desktop version).