Average GPS coordinates for San Martin Postcode location: 42.31, -2.346. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Martin on map:

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Listing cities & postcodes (1):
>> La Rioja, 26131 San Martin, La Rioja, GPS coordinates: 42.3102,-2.3457