Average GPS coordinates for Heybridge Postcode location: 51.708, 0.537. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Heybridge on map:

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Listing cities & postcodes (2):
>> Essex, CM4 Heybridge, England, GPS coordinates: 51.6756,0.3886
>> Essex, CM9 Heybridge, England, GPS coordinates: 51.7408,0.6846