Average GPS coordinates for Sekine Postcode location: 37.236, 138.637. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Sekine on map:

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Listing cities & postcodes (3):
>> Niigataken, 944-0143 Sekine, Nakakubikigun'Itakuramachi, GPS coordinates: 37.0576,138.2931
>> Niigataken, 948-0032 Sekine, Tookamachishi, GPS coordinates: 37.1119,138.7692
>> Niigataken, 954-0154 Sekine, Minamikanbaragunnakanoshimamachi, GPS coordinates: 37.5379,138.8476