Average GPS coordinates for Portland Postcode location: 27.894, -97.317. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Portland on map:
Listing cities & postcodes (1):
>> Texas, 78374 Portland, San Patricio, GPS coordinates: 27.8935,-97.3169
Listing cities & postcodes (1):
>> Texas, 78374 Portland, San Patricio, GPS coordinates: 27.8935,-97.3169