Wales · County

Water hardness in West Wales

Average 72 ppm across 51 postcodes and 1 towns.

  • Range 38–117 ppm
  • Towns 1
  • Suppliers Welsh Water (Dwr Cymru)
County average
72
ppm CaCO₃
Slightly Hard
Soft
Moderate
Hard
Very hard
0100200300400+
72
Avg ppm
38
Min ppm
117
Max ppm
51
Postcodes

Water Hardness Across West Wales

The average water hardness in West Wales is 72 ppm, classified as slightly hard. Across 51 postcode districts in the Wales region, hardness ranges from 38 ppm to 117 ppm.

West Wales is served by Welsh Water (Dwr Cymru). With slightly hard water, limescale is unlikely to be a major concern in most homes.

By town

Towns in West Wales

Sorted by hardness — tap a town for full details.

Town Hardness PPM Level
Swansea
72
72 ppm Slightly Hard
Suppliers

Water Companies in West Wales

Companies supplying water to this county.

Welsh Water (Dwr Cymru)

68 ppm Slightly Hard
All postcodes

Postcodes in West Wales

Every postcode district in the county, sorted by hardness.

Postcode Town Hardness PPM Level
SA39 Pencader
117
117 ppm Slightly Hard
SA38 Newcastle Emlyn
116
116 ppm Slightly Hard
SA37 Boncath
115
115 ppm Slightly Hard
SA69 Saundersfoot
115
115 ppm Slightly Hard
SA36 Glogue
114
114 ppm Slightly Hard
SA68 Kilgetty
114
114 ppm Slightly Hard
SA35 Llanfyrnach
113
113 ppm Slightly Hard
SA67 Narberth
113
113 ppm Slightly Hard
SA34 Whitland
112
112 ppm Slightly Hard
SA66 Clynderwen
112
112 ppm Slightly Hard
SA33 Carmarthen
111
111 ppm Slightly Hard
SA65 Fishguard
111
111 ppm Slightly Hard
SA32 Carmarthen
110
110 ppm Slightly Hard
SA64 Goodwick
110
110 ppm Slightly Hard
SA31 Carmarthen
109
109 ppm Slightly Hard
SA63 Clarbeston Road
109
109 ppm Slightly Hard
SA62 Haverfordwest
108
108 ppm Slightly Hard
SA61 Haverfordwest
107
107 ppm Slightly Hard
SA20 Llandovery
75
75 ppm Slightly Hard
SA9 Swansea
66
66 ppm Slightly Hard
SA8 Swansea
65
65 ppm Slightly Hard
SA7 Swansea
64
64 ppm Slightly Hard
SA6 Swansea
63
63 ppm Slightly Hard
SA5 Swansea
62
62 ppm Slightly Hard
SA4 Swansea
61
61 ppm Slightly Hard
SA3 Swansea
60
60 ppm Soft
SA2 Swansea
59
59 ppm Soft
SA1 Swansea
58
58 ppm Soft
SA19 Llandeilo
51
51 ppm Soft
SA18 Ammanford
50
50 ppm Soft
SA17 Kidwelly
49
49 ppm Soft
SA16 Burry Port
48
48 ppm Soft
SA48 Lampeter
48
48 ppm Soft
SA15 Llanelli
47
47 ppm Soft
SA47 Llanarth
47
47 ppm Soft
SA14 Llanelli
46
46 ppm Soft
SA46 Aberaeron
46
46 ppm Soft
SA13 Port Talbot
45
45 ppm Soft
SA45 New Quay
45
45 ppm Soft
SA12 Port Talbot
44
44 ppm Soft
SA44 Llandysul
44
44 ppm Soft
SA11 Neath
43
43 ppm Soft
SA43 Cardigan
43
43 ppm Soft
SA10 Neath
42
42 ppm Soft
SA42 Newport
42
42 ppm Soft
SA41 Crymych
41
41 ppm Soft
SA73 Milford Haven
41
41 ppm Soft
SA40 Llanybydder
40
40 ppm Soft
SA72 Pembroke Dock
40
40 ppm Soft
SA71 Pembroke
39
39 ppm Soft
SA70 Tenby
38
38 ppm Soft

Hard Water Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Hard Water Effects Solutions
All counties in Wales · Hardest water areas · Softest water areas · Hard water solutions

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