Average GPS coordinates for Porthallow Postcode location: 50.212, -4.779. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Porthallow on map:

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Listing cities & postcodes (2):
>> Cornwall, PL13 Porthallow, England, GPS coordinates: 50.3582,-4.4747
>> Cornwall, TR12 Porthallow, England, GPS coordinates: 50.0667,-5.0833