Average GPS coordinates for Princeton Postcode location: 40.326, -74.675. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Princeton on map:

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Listing cities & postcodes (5):
>> New Jersey, 08540 Princeton, Mercer, GPS coordinates: 40.3666,-74.6408
>> New Jersey, 08541 Princeton, Mercer, GPS coordinates: 40.2805,-74.712
>> New Jersey, 08542 Princeton, Mercer, GPS coordinates: 40.3535,-74.6594
>> New Jersey, 08543 Princeton, Mercer, GPS coordinates: 40.2805,-74.712
>> New Jersey, 08544 Princeton, Mercer, GPS coordinates: 40.3492,-74.6528