Average GPS coordinates for Siwalan Kerto Postcode location: -7.338, 112.738. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Siwalan Kerto on map:

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Listing cities & postcodes (1):
>> East Java, 60236 Siwalan Kerto, Surabaya, GPS coordinates: -7.33828,112.73786