Prosečne GPS koordinate za poštanski broj 10-657: 53.783, 20.483
Spisak gradova:
>> Olsztyn 10-657, Warmińsko-Mazurskie, Olsztyn, GPS koordinate: 53.7833,20.4833
Spisak gradova:
>> Olsztyn 10-657, Warmińsko-Mazurskie, Olsztyn, GPS koordinate: 53.7833,20.4833