UK region

Water hardness in Yorkshire

Average 215 ppm across 217 postcode districts — classified as hard.

  • Range 150–300 ppm
  • Counties 4
  • Suppliers Yorkshire Water
Regional average
215
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+
215
Avg ppm
150
Min ppm
300
Max ppm
217
Postcodes

Water Hardness Across Yorkshire

The average water hardness in the Yorkshire region is 215 ppm, classified as hard. Across 217 postcode districts, hardness ranges from 150 ppm to 300 ppm.

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

By county

Counties in Yorkshire

Sorted by hardness — see how your county compares.

County Hardness PPM Level Postcodes
East Yorkshire
237
237 ppm Hard 20
North Yorkshire
215
215 ppm Hard 34
West Yorkshire
214
214 ppm Hard 86
South Yorkshire
211
211 ppm Hard 77
Suppliers

Water Companies in Yorkshire

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

Yorkshire Water

215 ppm 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 Yorkshire

Top picks for households in 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 Yorkshire water

Is tap water in Yorkshire safe to drink?
Yes. All tap water in Yorkshire meets UK drinking water standards. Hardness affects taste and limescale buildup but not safety.
Why is water in Yorkshire hard?
Water hardness in Yorkshire 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 Yorkshire?
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 Yorkshire?
The average water hardness across Yorkshire is 215 ppm (parts per million), classified as hard. It ranges from 150 ppm to 300 ppm across 217 postcode districts.

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