Water Hardness in Norfolk

Water Hardness Across Norfolk

The average water hardness in Norfolk is 310 ppm, classified as very hard. Across 35 postcode districts in the East Of England region, hardness ranges from 265 ppm to 392 ppm.

Norfolk is served by Anglian Water. With very hard water, residents may benefit from a water softener to reduce limescale and protect appliances.

Hardness across Norfolk ranges from 265 ppm to 392 ppm by postcode district. The county spans 1 towns and 35 postcode districts in total.

At 310 ppm, Norfolk ranks as very hard water nationally. Compare it against the 50 hardest water areas in the UK.

By town

Towns in Norfolk

Sorted by hardness — tap a town for full details.

Town	Hardness	PPM	Level
Norwich	310	310 ppm	Very Hard

Suppliers

Water Companies in Norfolk

Companies supplying water to this county.

Anglian Water

321 ppm Very Hard

All postcodes

Postcodes in Norfolk

Every postcode district in the county, sorted by hardness.

Postcode	Town	Hardness	PPM	Level
NR19	Dereham	392	392 ppm	Very Hard
NR18	Wymondham	391	391 ppm	Very Hard
NR17	Attleborough	390	390 ppm	Very Hard
NR16	Norwich	389	389 ppm	Very Hard
NR15	Norwich	388	388 ppm	Very Hard
NR14	Norwich	387	387 ppm	Very Hard
NR13	Norwich	386	386 ppm	Very Hard
NR12	Norwich	385	385 ppm	Very Hard
NR11	Norwich	384	384 ppm	Very Hard
NR10	Norwich	383	383 ppm	Very Hard
NR35	Bungay	303	303 ppm	Very Hard
NR34	Beccles	302	302 ppm	Very Hard
NR33	Lowestoft	301	301 ppm	Very Hard
NR32	Lowestoft	300	300 ppm	Hard
NR31	Great Yarmouth	299	299 ppm	Hard
NR30	Great Yarmouth	298	298 ppm	Hard
NR9	Norwich	279	279 ppm	Hard
NR8	Norwich	278	278 ppm	Hard
NR7	Norwich	277	277 ppm	Hard
NR6	Norwich	276	276 ppm	Hard
NR5	Norwich	275	275 ppm	Hard
NR29	Great Yarmouth	274	274 ppm	Hard
NR4	Norwich	274	274 ppm	Hard
NR28	North Walsham	273	273 ppm	Hard
NR3	Norwich	273	273 ppm	Hard
NR2	Norwich	272	272 ppm	Hard
NR27	Cromer	272	272 ppm	Hard
NR1	Norwich	271	271 ppm	Hard
NR26	Sheringham	271	271 ppm	Hard
NR25	Holt	270	270 ppm	Hard
NR24	Melton Constable	269	269 ppm	Hard
NR23	Wells Next The Sea	268	268 ppm	Hard
NR22	Walsingham	267	267 ppm	Hard
NR21	Fakenham	266	266 ppm	Hard
NR20	Dereham	265	265 ppm	Hard

Recommended

Products for Norfolk

Top picks for households in very hard water areas.

Splendid Twin Tank Water Softener

From ~£400

Twin-tank electric softener sized for 1 to 7 bedroom homes. Removes limescale from pipes, boilers, and appliances and delivers continuous soft water, with metered regeneration to keep salt use low.

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Philips Shower Filter

From ~£30

Instant improvement for skin and hair. Reduces chlorine and limescale at the showerhead, no plumbing needed. A good first step before committing to a full softener.

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FAQ

Water Hardness in Norfolk: Common Questions

Is the water in Norfolk hard or soft?

Norfolk has very hard water, averaging 310 ppm across 35 postcode districts. Expect visible limescale on kettles, taps and shower screens within weeks at this level.

Where is the hardest water in Norfolk?

Across Norfolk, water hardness ranges from 265 ppm to 392 ppm by postcode district.

Which water company supplies Norfolk?

Norfolk is supplied by Anglian Water. You can check each supplier's reported hardness figures on their water company page.

Do I need a water softener in Norfolk?

At 310 ppm, Norfolk is in the hard band where a water softener noticeably reduces limescale and helps protect boilers and appliances. See the water softener guide for the payback maths.

What is the average water hardness in Norfolk?

The average water hardness in Norfolk is 310 ppm (parts per million), classified as very hard. It ranges from 265 ppm to 392 ppm across 35 postcode districts in the East Of England region.

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