Average GPS coordinates for Holywell Postcode location: 53.275, -3.229. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Holywell on map:

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Listing cities & postcodes (1):
>> Flintshire, CH8 Holywell, Wales, GPS coordinates: 53.2747,-3.229