The WD3 3 postcode sector is within the county of Hertfordshire in the East of England.
WD3 3 is a postcode sector within the WD3 postcode district which is within the WD Watford postcode area.
The Royal Mail delivery office for the WD3 3 postal sector is the Rickmansworth Delivery Office.
The area of the WD3 3 postcode sector is 2.15 square miles which is 5.57 square kilometres or 1,375.55 square acres.
Waterways within the WD3 3 postcode sector include the Grand Union Canal, River Gade and River Chess
The WD3 3 postcode sector is crossed by a railway.
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