DY postcode district map, Dudley
Supplier statuses last checked .
The DY postcode area covers 14 districts and 11,102 live postcodes, from DY1 to DY14. It is centred on Stourbridge and also covers Kidderminster, Dudley, Kingswinford, Tipton and Brierley Hill.
Districts here average 793 postcodes.
Where the DY districts sit
1 district is plotted without a label where labels would overlap; every one is in the table below.
Where DY sits
It is administratively fragmented, reaching into Dudley, Worcestershire, Staffordshire and Shropshire and 1 other authority.
Water supply across DY
All 14 DY districts are supplied by Severn Trent. That makes DY simple in a way many areas are not: one company, one set of rules, one status to check.
We are re-checking Severn Trent's status. It was last confirmed on 18 August 2026 as voluntary appeal, and until it is confirmed again this page does not assert a current position for it.
The shape of the DY area
DY8 is the largest district with 1,199 postcodes around Stourbridge, and DY7 the smallest with 343. The area divides into 59 postcode sectors.
District by district: DY1 serves Dudley, DY2 serves Dudley, DY3 serves Sedgley, DY4 serves Tipton, DY5 serves Brierley Hill, DY6 serves Kingswinford, DY7 serves Kingswinford, DY8 serves Stourbridge, DY9 serves Stourbridge, DY10 serves Kidderminster, DY11 serves Kidderminster, DY12 serves Bewdley, DY13 serves Stourport-on-Severn and DY14 serves Cleobury Mortimer.
Several districts share a settlement, which is a common source of confusion when a form rejects an address: DY1 and DY2 all point at Dudley, DY6 and DY7 all point at Kingswinford and DY8 and DY9 all point at Stourbridge.
What borders DY
DY sits next to WV (Wolverhampton) to the north, B (Birmingham) to the east, WR (Worcester) to the south, WS (Walsall) to the north east and TF (Telford) to the north west.
Its neighbours run in 5 different directions, so DY is landlocked by other postcode areas on most sides.
DY districts, settlements and water supply
| District | Principal settlement | Water company | Hosepipe ban status |
|---|---|---|---|
| DY1 | Dudley | Severn Trent / South Staffs Water | Check with your supplier |
| DY2 | Dudley | Severn Trent / South Staffs Water | Check with your supplier |
| DY3 | Sedgley | Severn Trent / South Staffs Water | Check with your supplier |
| DY4 | Tipton | Severn Trent / South Staffs Water | Check with your supplier |
| DY5 | Brierley Hill | Severn Trent / South Staffs Water | Check with your supplier |
| DY6 | Kingswinford | Severn Trent / South Staffs Water | Check with your supplier |
| DY7 | Kingswinford | Severn Trent / South Staffs Water | Check with your supplier |
| DY8 | Stourbridge | Severn Trent / South Staffs Water | Check with your supplier |
| DY9 | Stourbridge | Severn Trent / South Staffs Water | Check with your supplier |
| DY10 | Kidderminster | Severn Trent / South Staffs Water | Check with your supplier |
| DY11 | Kidderminster | Severn Trent / South Staffs Water | Check with your supplier |
| DY12 | Bewdley | Severn Trent / South Staffs Water | Check with your supplier |
| DY13 | Stourport-on-Severn | Severn Trent / South Staffs Water | Check with your supplier |
| DY14 | Cleobury Mortimer | Severn Trent / South Staffs Water | Check with your supplier |
Principal settlement is the town or city each district sits in or nearest to, derived from OS Open Names. It is not the Royal Mail post town, which is licensed data and not published openly. Status is resolved live from each company’s own notice.
Water hardness in DY
No water company covering DY publishes hardness figures as open data. The gap is named per district below so you know who to ask.
| District | Hardness | As published | Supply zone | Published by |
|---|---|---|---|---|
| DY1 | Not published by Severn Trent. Check with your supplier. | |||
| DY2 | Not published by Severn Trent. Check with your supplier. | |||
| DY3 | Not published by Severn Trent. Check with your supplier. | |||
| DY4 | Not published by Severn Trent. Check with your supplier. | |||
| DY5 | Not published by Severn Trent. Check with your supplier. | |||
| DY6 | Not published by Severn Trent. Check with your supplier. | |||
| DY7 | Not published by Severn Trent. Check with your supplier. | |||
| DY8 | Not published by Severn Trent. Check with your supplier. | |||
| DY9 | Not published by Severn Trent. Check with your supplier. | |||
| DY10 | Not published by Severn Trent. Check with your supplier. | |||
| DY11 | Not published by Severn Trent. Check with your supplier. | |||
| DY12 | Not published by Severn Trent. Check with your supplier. | |||
| DY13 | Not published by Severn Trent. Check with your supplier. | |||
| DY14 | Not published by Severn Trent. Check with your supplier. | |||
Hardness is published per census area, not per postcode, so these figures characterise a district rather than measuring one address. They are a scale and taste matter, not a safety one. Hardness data version wessex-water@2022-2025+yorkshire-water@2026.
Download the DY data
No signup, no email wall. GeoJSON carries the district points, the supplier and the live status, so it can be dropped straight into a map.
District positions are averaged postcode centroids from OS Code-Point Open. They show roughly where a district sits, not where its boundary runs, and are not legal boundaries.
Frequently asked questions
How many postcode districts are in the DY area?
There are 14 DY postcode districts, running from DY1 to DY14, and they contain 11,102 live postcodes across 59 sectors.
What towns does the DY postcode area cover?
DY covers Stourbridge, Kidderminster, Dudley, Kingswinford, Tipton and Brierley Hill. The area takes its name from Stourbridge, and each district is listed with its settlement in the table on this page.
Which water company supplies DY postcodes?
Severn Trent supplies all 14 DY districts. Supply boundaries follow the pipe network rather than postcode geography, so confirm against your water bill if you are near the edge of the area.
Why do DY1 and DY2 both say Dudley?
DY1 and DY2 all serve Dudley, covering different parts of it. A single town routinely needs more than one postcode district once it passes a few thousand delivery points, so this is normal rather than an error in an address.
Can I download a free DY postcode map?
Yes. This page offers the DY districts as GeoJSON, CSV and SVG, free and with no signup or email address required. The GeoJSON carries each district's position, its water company and its current restriction status, so it can be dropped straight into a mapping tool.
Why is the DY area called Dudley when it covers Stourbridge?
DY takes its letters from Dudley, where the sorting office that served the area was based when the code was allocated. Stourbridge is the largest settlement in the area today, in DY8, but the area code follows the historic sorting geography rather than current population.
Which councils cover the DY postcode area?
DY reaches into Dudley, Worcestershire, Staffordshire, Shropshire and Sandwell. A postcode area is not a council area: they were drawn for different purposes and a single district can sit across a council boundary, so your postcode does not tell you which authority you pay.