Average GPS coordinates for Topallar Postcode location: 39.8, 35.042. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Topallar on map:

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Listing cities & postcodes (2):
>> Kocaeli, 41000 Topallar, İzmit, Köyler, GPS coordinates: 37.8833,36.25
>> Kocaeli, 41600 Topallar, Kandira, Köyler, GPS coordinates: 41.7167,33.8333