Prosečne GPS koordinate za poštanski broj 31028: 52.083, 9.783
Spisak gradova:
>> Gronau (Leine) 31028, Niedersachsen, Hildesheim, GPS koordinate: 52.0833,9.7833
Spisak gradova:
>> Gronau (Leine) 31028, Niedersachsen, Hildesheim, GPS koordinate: 52.0833,9.7833