The WD23 4 postcode sector stands on the Greater London and Hertfordshire border in .
Currently the WD23 4 sector has 156 postcode units.
WD23 4 is a postcode sector within the WD23 postcode district which is within the WD Watford postcode area.
The Royal Mail delivery office for the WD23 4 postal sector is the Bushey Delivery Office.
The area of the WD23 4 postcode sector is 0.86 square miles which is 2.23 square kilometres or 550.28 square acres.
The WD23 4 postcode sector is crossed by the M1 motorway.
Explore the wd23 4 WD23 4 postcode sector by using our free interactive map.
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