Postcode district boundaries:
|Watford postcode area|
|Postcode area name||Watford|
|Statistics as at February 2012|
The WD postcode area, also known as the Watford postcode area, is a group of eleven postcode districts in England, which are subdivisions of seven post towns. These districts cover south-west Hertfordshire (including Watford, Borehamwood, Rickmansworth, Kings Langley, Abbots Langley, Bushey and Radlett), plus very small parts of Buckinghamshire and Greater London.
The approximate coverage of the postcode districts:
|Postcode district||Post town||Coverage||Local authority area|
|WD3||RICKMANSWORTH||Rickmansworth, Chorleywood, Croxley Green, Loudwater, Mill End, Maple Cross, Sarratt, Batchworth, Chenies, Harefield (part), West Hyde, Heronsgate, Chandler's Cross||Three Rivers, Chiltern, Hillingdon|
|WD4||KINGS LANGLEY||Kings Langley, Chipperfield, Hunton Bridge, Rucklers Lane, Bucks Hill||Dacorum, Three Rivers|
|WD5||ABBOTS LANGLEY||Abbots Langley, Bedmond||Three Rivers, St Albans|
|WD6||BOREHAMWOOD||Borehamwood, Elstree, Well End||Hertsmere|
|WD7||RADLETT||Radlett, Shenley||Hertsmere, St Albans|
|WD17||WATFORD||Watford town centre, Cassiobury, Nascot Wood||Watford|
|WD18||WATFORD||West Watford, Holywell||Watford|
|WD19||WATFORD||Oxhey, South Oxhey, Carpenders Park||Three Rivers, Watford|
|WD23||BUSHEY||Bushey, Bushey Heath||Hertsmere, Watford|
|WD25||WATFORD||Garston, Leavesden, Aldenham, Letchmore Heath||Watford, Hertsmere, Three Rivers, St Albans|
In September 2000 districts WD17-19 and WD23-25 were created from the recoding of the WD1 and WD2 districts. BUSHEY is a new post town; having previously been part of the WD2 district of WATFORD. This was due to postcode exhaustion of WD1 and WD2  Another reason for the postcode revision was the old WD2 area included Bushey with North Watford. Bushey was to all intents a section of Watford sorting office; up until 2000, all mail for WD2 was cut and tipped at Watford office. In order to change this, new codes were created to enable direct bags to be opened at Bushey delivery office. Local union reps claimed that the reason Bushey Delivery Office was included with Watford was so Watford postal workers would attract outer London weighting, since Bushey was in the London Metropolitan Police area at the time.
- "ONS Postcode Directory Version Notes" (ZIP). National Statistics Postcode Products. Office for National Statistics. February 2012. Table 2. Retrieved 21 April 2012. Coordinates from mean of unit postcode points, "Code-Point Open". OS OpenData. Ordnance Survey. February 2012. Retrieved 21 April 2012.
- Royal Mail, Address Management Guide, (2004)
- "Strikes 'ruled out' after Royal Mail closes Watford depot". Watford Observer. Retrieved 22 April 2018.
- Royal Mail - Postcode Update 31 (September 2000)