Average GPS coordinates for Geger Postcode location: -7.363, 112.233. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Geger on map:

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Listing cities & postcodes (2):
>> East Java, 69152 Geger, Bangkalan, GPS coordinates: -6.98333,112.91667
>> East Java, 63171 Geger, Madiun, GPS coordinates: -7.74273,111.54837