East Of England · County

Water hardness in Norfolk

Average 310 ppm across 35 postcodes and 1 towns.

  • Range 265–392 ppm
  • Towns 1
  • Suppliers Anglian Water
County average
310
ppm CaCO₃
Very Hard
Soft
Moderate
Hard
Very hard
0100200300400+
310
Avg ppm
265
Min ppm
392
Max ppm
35
Postcodes

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.

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.

Water2Buy W2B200 Water Softener

From ~£400

Best-value whole-house ion-exchange softener for UK homes. Eliminates limescale from pipes, boilers, and appliances. Digital metered regeneration — low salt use. 7-year warranty.

View on Amazon

Philips AWP1775 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.

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 East Of England · Hardest water areas · Softest water areas · Hard water solutions

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