Average GPS coordinates for Altadena Postcode location: 34.054, -118.19. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Altadena on map:

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Listing cities & postcodes (3):
>> California, 91001 Altadena, Los Angeles, GPS coordinates: 34.1912,-118.1392
>> California, 91002 Altadena, Los Angeles County, GPS coordinates: 34.1847,-118.1307
>> California, 91003 Altadena, Los Angeles, GPS coordinates: 33.7866,-118.2987