Prosečne GPS koordinate za poštanski broj 21721: 32.421, -115.218
Spisak gradova:
>> Hidalgo 21721, Baja California, Mexicali, GPS koordinate: 32.4208,-115.2175
Spisak gradova:
>> Hidalgo 21721, Baja California, Mexicali, GPS koordinate: 32.4208,-115.2175