Prosečne GPS koordinate za poštanski broj 18823: 41.776, -75.694
Spisak gradova:
>> Harford 18823, Pennsylvania, Susquehanna, GPS koordinate: 41.7761,-75.6935
Spisak gradova:
>> Harford 18823, Pennsylvania, Susquehanna, GPS koordinate: 41.7761,-75.6935