Average GPS coordinates for La Union Postcode location: 25.358, -99.767. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). La Union on map:

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Listing cities & postcodes (2):
>> Nuevo Leon, 67413 La Union, General Teran, GPS coordinates: 25.3333,-99.5833
>> Nuevo Leon, 67467 La Union, Cadereyta Jimenez, GPS coordinates: 25.3833,-99.95