Average GPS coordinates for São João Postcode location: 41.161, -8.511. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). São João on map:

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Listing cities & postcodes (4):
>> Porto, 4575-630 São João, Penalva do Castelo, Vinhas, GPS coordinates: 41.15,-8.5833
>> Porto, 4620-163 São João, Ribeira Grande, Edroso, GPS coordinates: 41.1389,-8.6
>> Porto, 4620-610 São João, Ribeira Grande, Macedo de Cavaleiros, GPS coordinates: 41.1292,-8.4708
>> Porto, 4630-742 São João, Ribeira Brava, Murçós, GPS coordinates: 41.2261,-8.3906