Prosečne GPS koordinate za poštanski broj 31730: 43.131, -1.548

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Spisak gradova:
>> Aitzano 31730, Navarra, Navarra, GPS koordinate: 43.1312,-1.5476
>> Ariztegi 31730, Navarra, Navarra, GPS koordinate: 43.1312,-1.5476
>> Etxerri 31730, Navarra, Navarra, GPS koordinate: 43.1312,-1.5476
>> Gartzain 31730, Navarra, Navarra, GPS koordinate: 43.1312,-1.5476
>> Irurita 31730, Navarra, Navarra, GPS koordinate: 43.1312,-1.5476