Average GPS coordinates for Nassau Postcode location: 42.527, -73.612. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Nassau on map:

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Listing cities & postcodes (1):
>> New York, 12123 Nassau, Rensselaer, GPS coordinates: 42.5271,-73.6118