Average GPS coordinates for Winnetka Postcode location: 33.998, -118.437. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Winnetka on map:

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Listing cities & postcodes (2):
>> California, 91306 Winnetka, Los Angeles, GPS coordinates: 34.2092,-118.5749
>> California, 91396 Winnetka, Los Angeles, GPS coordinates: 33.7866,-118.2987