Reduce the list, select first 2 letters of the city:
Listing cities (141 place(s)). Select the City to see the postcode(s):
Listing cities (141 place(s)). Select the City to see the postcode(s):
Position: Postcodes > Japan > Fukuokaken > Y.... >
Postcode finder: Japan, List of the cities starting with Y. Japan Fukuokaken Postcodes (Desktop version).