Reduce the list, select first 2 letters of the city:
Listing cities (22 place(s)). Select the City to see the postcode(s):
Listing cities (22 place(s)). Select the City to see the postcode(s):
Position: Postcodes > Germany > Nordrhein-Westfalen > K.... >
Postcode finder: Germany, List of the cities starting with K. Germany Nordrhein-Westfalen Postcodes (Desktop version).