Average GPS coordinates for Sumner Postcode location: 40.95, -99.52. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Sumner on map:

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Listing cities & postcodes (1):
>> Nebraska, 68878 Sumner, Dawson, GPS coordinates: 40.9504,-99.52