Softest Water Areas in the UK

The 50 postcode districts with the lowest water hardness levels, ranked by PPM.

#	Postcode	Town	Water Company	Hardness	PPM
1	SY11	Oswestry	Welsh Water (Dwr Cymru)	20 ppm	20 ppm
2	SY12	Ellesmere	Welsh Water (Dwr Cymru)	21 ppm	21 ppm
3	SY13	Whitchurch	Welsh Water (Dwr Cymru)	22 ppm	22 ppm
4	SY14	Malpas	Welsh Water (Dwr Cymru)	23 ppm	23 ppm
5	SY15	Montgomery	Welsh Water (Dwr Cymru)	24 ppm	24 ppm
6	SY16	Newtown	Welsh Water (Dwr Cymru)	25 ppm	25 ppm
7	SY17	Caersws	Welsh Water (Dwr Cymru)	26 ppm	26 ppm
8	TA10	Langport	South West Water	27 ppm	27 ppm
9	SY18	Llanidloes	Welsh Water (Dwr Cymru)	27 ppm	27 ppm
10	TQ10	South Brent	South West Water	28 ppm	28 ppm
11	TA11	Somerton	South West Water	28 ppm	28 ppm
12	SY19	Llanbrynmair	Welsh Water (Dwr Cymru)	28 ppm	28 ppm
13	TQ11	Buckfastleigh	South West Water	29 ppm	29 ppm
14	TA12	Martock	South West Water	29 ppm	29 ppm
15	TQ12	Newton Abbot	South West Water	30 ppm	30 ppm
16	TA13	South Petherton	South West Water	30 ppm	30 ppm
17	LL70	Dulas	Welsh Water (Dwr Cymru)	30 ppm	30 ppm
18	TQ13	Newton Abbot	South West Water	31 ppm	31 ppm
19	TA14	Stoke Sub Hamdon	South West Water	31 ppm	31 ppm
20	LL71	Llannerch Y Medd	Welsh Water (Dwr Cymru)	31 ppm	31 ppm
21	CF71	Cowbridge	Welsh Water (Dwr Cymru)	31 ppm	31 ppm
22	TQ14	Teignmouth	South West Water	32 ppm	32 ppm
23	TA15	Montacute	South West Water	32 ppm	32 ppm
24	LL72	Moelfre	Welsh Water (Dwr Cymru)	32 ppm	32 ppm
25	LL40	Dolgellau	Welsh Water (Dwr Cymru)	32 ppm	32 ppm
26	CF72	Pontyclun	Welsh Water (Dwr Cymru)	32 ppm	32 ppm
27	CF40	Tonypandy	Welsh Water (Dwr Cymru)	32 ppm	32 ppm
28	TA16	Merriott	South West Water	33 ppm	33 ppm
29	LL73	Marianglas	Welsh Water (Dwr Cymru)	33 ppm	33 ppm
30	LL41	Blaenau Ffestiniog	Welsh Water (Dwr Cymru)	33 ppm	33 ppm
31	CF41	Pentre	Welsh Water (Dwr Cymru)	33 ppm	33 ppm
32	TA17	Hinton St George	South West Water	34 ppm	34 ppm
33	M20	Manchester	United Utilities	34 ppm	34 ppm
34	LL74	Tyn Y Gongl	Welsh Water (Dwr Cymru)	34 ppm	34 ppm
35	LL42	Barmouth	Welsh Water (Dwr Cymru)	34 ppm	34 ppm
36	L20	Bootle	United Utilities	34 ppm	34 ppm
37	CF42	Treorchy	Welsh Water (Dwr Cymru)	34 ppm	34 ppm
38	CF10	Cardiff	Welsh Water (Dwr Cymru)	34 ppm	34 ppm
39	TA18	Crewkerne	South West Water	35 ppm	35 ppm
40	M21	Manchester	United Utilities	35 ppm	35 ppm
41	LL75	Pentraeth	Welsh Water (Dwr Cymru)	35 ppm	35 ppm
42	LL43	Talybont	Welsh Water (Dwr Cymru)	35 ppm	35 ppm
43	LL11	Wrexham	Welsh Water (Dwr Cymru)	35 ppm	35 ppm
44	L21	Liverpool	United Utilities	35 ppm	35 ppm
45	CH1	Chester	United Utilities	35 ppm	35 ppm
46	CF43	Ferndale	Welsh Water (Dwr Cymru)	35 ppm	35 ppm
47	CF11	Cardiff	Welsh Water (Dwr Cymru)	35 ppm	35 ppm
48	TA19	Ilminster	South West Water	36 ppm	36 ppm
49	M22	Manchester	United Utilities	36 ppm	36 ppm
50	LL76	Llanbedrgoch	Welsh Water (Dwr Cymru)	36 ppm	36 ppm

Where Is Water Softest in the UK?

The softest water in the UK is found in Scotland, Wales, and parts of northern England. Scottish Water serves water from ancient granite and metamorphic rock formations that add very little mineral content. Similarly, Welsh Water draws from upland reservoirs in areas with minimal limestone geology.

Soft water lathers easily, is gentle on skin and hair, and causes minimal limescale buildup in appliances. Learn more about water hardness.