Keskimääräinen GPS-koordinaatit postinumero co4: 51.924, 0.92

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Listatut kaupungit:
>> Langham Moor CO4, Essex, England, GPS-koordinaatit: 51.9086,0.9209
>> Boxted Cross CO4, Essex, England, GPS-koordinaatit: 51.9086,0.9209
>> Blacksmith's Corner CO4, Essex, England, GPS-koordinaatit: 51.9086,0.9209
>> Mile End CO4, Essex, England, GPS-koordinaatit: 51.9167,0.9
>> Langham CO4, Essex, England, GPS-koordinaatit: 51.9488,0.9433
>> Boxted CO4, Essex, England, GPS-koordinaatit: 51.95,0.9167