UK region

Water hardness in East Of England

Average 326 ppm across 203 postcode districts — classified as very hard.

  • Range 260–394 ppm
  • Counties 6
  • Suppliers Anglian Water
Regional average
326
ppm CaCO₃
Very Hard
Soft
Moderate
Hard
Very hard
0100200300400+
326
Avg ppm
260
Min ppm
394
Max ppm
203
Postcodes

Water Hardness Across East Of England

The average water hardness in the East Of England region is 326 ppm, classified as very hard. Across 203 postcode districts, hardness ranges from 260 ppm to 394 ppm.

The region is served by Anglian Water. Water hardness varies by county — see the breakdown below or check your specific postcode.

By county

Counties in East Of England

Sorted by hardness — see how your county compares.

County Hardness PPM Level Postcodes
Suffolk
352
352 ppm Very Hard 33
Cambridgeshire
322
322 ppm Very Hard 51
Essex
317
317 ppm Very Hard 58
Norfolk
310
310 ppm Very Hard 35
Bedfordshire
309
309 ppm Very Hard 7
Hertfordshire
303
303 ppm Very Hard 53
Suppliers

Water Companies in East Of England

Tap on a company for full coverage area and hardness data.

Anglian Water

321 ppm Very Hard

Hard Water Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Hard Water Effects Solutions
Recommended

Products for East Of England

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
FAQ

Common questions about East Of England water

Is tap water in East Of England safe to drink?
Yes. All tap water in East Of England meets UK drinking water standards. Hardness affects taste and limescale buildup but not safety.
Why is water in East Of England very hard?
Water hardness in East Of England depends on the geology — chalk and limestone aquifers dissolve calcium and magnesium into the supply, making it harder. Areas with sandstone or granite tend to be softer.
Does hard water affect boilers in East Of England?
Over time, limescale acts as an insulator in heat exchangers, reducing efficiency by a few percentage points each year if untreated. A water softener can help protect your boiler.
What's the average water hardness in East Of England?
The average water hardness across East Of England is 326 ppm (parts per million), classified as very hard. It ranges from 260 ppm to 394 ppm across 203 postcode districts.

Get East Of England Water Updates

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