Average GPS coordinates for Hanover Postcode location: 41.645, -72.068. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Hanover on map:

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Listing cities & postcodes (1):
>> Connecticut, 06350 Hanover, New London, GPS coordinates: 41.6445,-72.0677