Average GPS coordinates for Littleton Postcode location: 42.54, -71.488. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Littleton on map:

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Listing cities & postcodes (1):
>> Massachusetts, 01460 Littleton, Middlesex, GPS coordinates: 42.5401,-71.4877