Average GPS coordinates for São Sebastião Postcode location: 41.188, -8.301. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). São Sebastião on map:

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Listing cities & postcodes (6):
>> Porto, 4575-175 São Sebastião, Penalva do Castelo, Mazouco, GPS coordinates: 41.1933,-8.3
>> Porto, 4575-227 São Sebastião, Penalva do Castelo, Cortiços, GPS coordinates: 41.125,-8.3083
>> Porto, 4600-611 São Sebastião, Corvo, Espadanedo, GPS coordinates: 41.2,-8.0833
>> Porto, 4605-483 São Sebastião, Corvo, Vilarinho de Agrochão, GPS coordinates: 41.24,-8.3967
>> Porto, 4625-366 São Sebastião, Ribeira Brava, Grijó, GPS coordinates: 41.1458,-8.2625
>> Porto, 4635-751 São Sebastião, Ribeira Brava, Talhinhas, GPS coordinates: 41.2262,-8.454