Prosečne GPS koordinate za poštanski broj 20686: 38.189, -76.421
Spisak gradova:
>> Saint Marys City 20686, Maryland, St. Mary's, GPS koordinate: 38.1888,-76.4207
Spisak gradova:
>> Saint Marys City 20686, Maryland, St. Mary's, GPS koordinate: 38.1888,-76.4207