Average GPS coordinates for Killingworth Postcode location: 41.37, -72.571. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Killingworth on map:

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Listing cities & postcodes (1):
>> Connecticut, 06419 Killingworth, Middlesex, GPS coordinates: 41.3696,-72.5712