Average GPS coordinates for Posa Postcode location: 42.079, -8.396. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Posa on map:

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Listing cities & postcodes (2):
>> Viana do Castelo, 4990-635 Posa, Ribeira Brava, Podence, GPS coordinates: 42.075,-8.425
>> Viana do Castelo, 4990-750 Posa, Ribeira Brava, São Pedro de Serracenos, GPS coordinates: 42.0833,-8.3667