South West · County

Water hardness in Somerset

Average 139 ppm across 43 postcodes and 2 towns.

Range 27–291 ppm
Towns 2
Suppliers South West Water, Wessex Water

County average

139

ppm CaCO₃

Moderately Hard

Soft

Moderate

Hard

Very hard

0100200300400+

139

Avg ppm

Min ppm

291

Max ppm

Postcodes

Water Hardness Across Somerset

The average water hardness in Somerset is 139 ppm, classified as moderately hard. Across 43 postcode districts in the South West region, hardness ranges from 27 ppm to 291 ppm.

Somerset is served by South West Water and Wessex Water. With moderately hard water, limescale is unlikely to be a major concern in most homes.

By town

Towns in Somerset

Sorted by hardness — tap a town for full details.

Town	Hardness	PPM	Level
Bath	250	250 ppm	Hard
Taunton	51	51 ppm	Soft

Suppliers

Water Companies in Somerset

Companies supplying water to this county.

South West Water

80 ppm Slightly Hard

Wessex Water

231 ppm Hard

All postcodes

Postcodes in Somerset

Every postcode district in the county, sorted by hardness.

Postcode	Town	Hardness	PPM	Level
BA9	Wincanton	291	291 ppm	Hard
BA8	Templecombe	290	290 ppm	Hard
BA7	Castle Cary	289	289 ppm	Hard
BA6	Glastonbury	288	288 ppm	Hard
BA5	Wells	287	287 ppm	Hard
BA4	Shepton Mallet	286	286 ppm	Hard
BA3	Radstock	285	285 ppm	Hard
BA2	Bath	284	284 ppm	Hard
BA1	Bath	283	283 ppm	Hard
BA22	Yeovil	239	239 ppm	Hard
BA21	Yeovil	238	238 ppm	Hard
BA20	Yeovil	237	237 ppm	Hard
BA16	Street	210	210 ppm	Hard
BA15	Bradford On Avon	209	209 ppm	Hard
BA14	Trowbridge	208	208 ppm	Hard
BA13	Westbury	207	207 ppm	Hard
BA12	Warminster	206	206 ppm	Hard
BA11	Frome	205	205 ppm	Hard
BA10	Bruton	204	204 ppm	Hard
TA9	Highbridge	70	70 ppm	Slightly Hard
TA8	Burnham On Sea	69	69 ppm	Slightly Hard
TA7	Bridgwater	68	68 ppm	Slightly Hard
TA6	Bridgwater	67	67 ppm	Slightly Hard
TA5	Bridgwater	66	66 ppm	Slightly Hard
TA4	Taunton	65	65 ppm	Slightly Hard
TA24	Minehead	64	64 ppm	Slightly Hard
TA3	Taunton	64	64 ppm	Slightly Hard
TA2	Taunton	63	63 ppm	Slightly Hard
TA23	Watchet	63	63 ppm	Slightly Hard
TA1	Taunton	62	62 ppm	Slightly Hard
TA22	Dulverton	62	62 ppm	Slightly Hard
TA21	Wellington	61	61 ppm	Slightly Hard
TA20	Chard	60	60 ppm	Soft
TA19	Ilminster	36	36 ppm	Soft
TA18	Crewkerne	35	35 ppm	Soft
TA17	Hinton St George	34	34 ppm	Soft
TA16	Merriott	33	33 ppm	Soft
TA15	Montacute	32	32 ppm	Soft
TA14	Stoke Sub Hamdon	31	31 ppm	Soft
TA13	South Petherton	30	30 ppm	Soft
TA12	Martock	29	29 ppm	Soft
TA11	Somerton	28	28 ppm	Soft
TA10	Langport	27	27 ppm	Soft

Test Your Water in Somerset

At 139 ppm on average, your water is moderately hard. A home testing kit lets you verify the exact hardness for your postcode and check for other contaminants.

TESPERT 16-in-1 Water Testing Kit

From ~£10

Home water test strips that check hardness, pH, chlorine, lead, and 12 other parameters. Results in around 60 seconds. 125 strips per pack.

View on Amazon

Hard Water Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Hard Water Effects Solutions

All counties in South West · Hardest water areas · Softest water areas · Hard water solutions

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