Average GPS coordinates for São Sebastião Postcode location: 38.876, -9.337. (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 (4):
>> Lisboa, 2580-516 São Sebastião, Corvo, Constantim, GPS coordinates: 39.0367,-8.9933
>> Lisboa, 2665-059 São Sebastião, Santana, Mazouco, GPS coordinates: 38.8667,-9.4333
>> Lisboa, 2705-347 São Sebastião, Penalva do Castelo, Mazouco, GPS coordinates: 38.8,-9.4611
>> Lisboa, 2705-354 São Sebastião, Penalva do Castelo, Mazouco, GPS coordinates: 38.8,-9.4583