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

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.

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.

View on Amazon

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.

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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