Average GPS coordinates for Belmont Postcode location: 42.43, -71.332. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Belmont on map:

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Listing cities & postcodes (2):
>> Massachusetts, 02178 Belmont, Middlesex, GPS coordinates: 42.4464,-71.4594
>> Massachusetts, 02478 Belmont, Middlesex, GPS coordinates: 42.4128,-71.2044