Average GPS coordinates for Antrim Postcode location: 43.06, -71.939. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Antrim on map:

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Listing cities & postcodes (1):
>> New Hampshire, 03440 Antrim, Hillsborough, GPS coordinates: 43.0595,-71.9387