Average GPS coordinates for Kartal Postcode location: 47.667, 19.55. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Kartal on map:

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Listing cities & postcodes (1):
>> Pest megye, 2173 Kartal, GPS coordinates: 47.6667,19.55