LD postcode district map, Llandrindod Wells
Supplier statuses last checked .
We’re re-checking Welsh Water. Its last confirmed status is still shown here, because hiding a restriction we cannot currently re-read is the more expensive mistake, last confirmed 29 days ago.
The LD postcode area covers 8 districts and 2,216 live postcodes, from LD1 to LD8. It is centred on Aberhonddu and also covers Llandrindod Wells, Llanfair-ym-Muallt, Tref-y-Clawdd, Llanandras and Llanwrtyd Wells.
Districts here average 277 postcodes.
Where the LD districts sit
1 district is plotted without a label where labels would overlap; every one is in the table below.
Where LD sits
It falls across Powys, Shropshire and County of Herefordshire.
LD spans the border: 2,168 of its postcodes are in Wales and 48 in England, about 2 per cent. That matters here in a way it does not on a plain postcode map, because water is regulated separately either side of it. In England the Environment Agency oversees drought and abstraction; in Wales it is Natural Resources Wales, and restrictions are set by whichever company supplies the address, not by which country it sits in.
Water supply across LD
All 8 LD districts are supplied by Welsh Water. That makes LD simple in a way many areas are not: one company, one set of rules, one status to check.
We are re-checking Welsh Water's status. It was last confirmed on 18 August 2026 as ban in force, and until it is confirmed again this page does not assert a current position for it.
The shape of the LD area
LD3 is the largest district with 874 postcodes around Aberhonddu, and LD4 the smallest with 58. The area divides into 16 postcode sectors.
LD3 alone holds about 39 per cent of every postcode in LD,.
District by district: LD1 serves Llandrindod Wells, LD2 serves Llanfair-ym-Muallt, LD3 serves Aberhonddu, LD4 serves Llanwrtyd Wells, LD5 serves Llanwrtyd Wells, LD6 serves Rhayader, LD7 serves Tref-y-Clawdd and LD8 serves Llanandras.
Several districts share a settlement, which is a common source of confusion when a form rejects an address: LD4 and LD5 all point at Llanwrtyd Wells.
What borders LD
LD sits next to HR (Hereford) to the east, SY (Shrewsbury) to the north, NP (Pontypool) to the south east, CF (Cardiff) to the south and WR (Worcester) to the east.
Its neighbours run in 4 different directions, so LD is landlocked by other postcode areas on most sides.
LD districts, settlements and water supply
| District | Principal settlement | Water company | Hosepipe ban status |
|---|---|---|---|
| LD1 | Llandrindod Wells | Welsh Water | Check with your supplier |
| LD2 | Llanfair-ym-Muallt | Welsh Water | Check with your supplier |
| LD3 | Aberhonddu | Welsh Water | Check with your supplier |
| LD4 | Llanwrtyd Wells | Welsh Water | Check with your supplier |
| LD5 | Llanwrtyd Wells | Welsh Water | Check with your supplier |
| LD6 | Rhayader | Welsh Water | Check with your supplier |
| LD7 | Tref-y-Clawdd | Welsh Water | Check with your supplier |
| LD8 | Llanandras | Welsh 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 LD
No water company covering LD 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 |
|---|---|---|---|---|
| LD1 | Not published by Welsh Water. Check with your supplier. | |||
| LD2 | Not published by Welsh Water. Check with your supplier. | |||
| LD3 | Not published by Welsh Water. Check with your supplier. | |||
| LD4 | Not published by Welsh Water. Check with your supplier. | |||
| LD5 | Not published by Welsh Water. Check with your supplier. | |||
| LD6 | Not published by Welsh Water. Check with your supplier. | |||
| LD7 | Not published by Welsh Water. Check with your supplier. | |||
| LD8 | Not published by Welsh Water. 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 LD 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 LD area?
There are 8 LD postcode districts, running from LD1 to LD8, and they contain 2,216 live postcodes across 16 sectors.
What towns does the LD postcode area cover?
LD covers Aberhonddu, Llandrindod Wells, Llanfair-ym-Muallt, Tref-y-Clawdd, Llanandras and Llanwrtyd Wells. The area takes its name from Aberhonddu, and each district is listed with its settlement in the table on this page.
Which water company supplies LD postcodes?
Welsh Water supplies all 8 LD 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.
Is the LD postcode area in Wales or England?
Both. 2,168 LD postcodes are in Wales and 48 are in England. The postcode does not decide which applies: your water company does, and water is regulated separately either side of the border.
Why do LD4 and LD5 both say Llanwrtyd Wells?
LD4 and LD5 all serve Llanwrtyd Wells, 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 LD postcode map?
Yes. This page offers the LD 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 LD area called Llandrindod Wells when it covers Aberhonddu?
LD takes its letters from Llandrindod Wells, where the sorting office that served the area was based when the code was allocated. Aberhonddu is the largest settlement in the area today, in LD3, but the area code follows the historic sorting geography rather than current population.