The AL9 7 postcode sector is within the county of Hertfordshire in the East of England.
AL9 7 is a postcode sector within the AL9 postcode district which is within the AL St Albans postcode area.
The Royal Mail delivery office for the AL9 7 postal sector is the Hatfield (al) Delivery Office.
The area of the AL9 7 postcode sector is 4.41 square miles which is 11.41 square kilometres or 2,819.38 square acres.
The AL9 7 postcode sector is crossed by the
Waterways within the AL9 7 postcode sector include the River Colne.
The AL9 7 postcode sector is crossed by a railway.
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