Average 199 ppm across 23 postcodes and 1 towns.
The average water hardness in Derbyshire is 199 ppm, classified as hard. Across 23 postcode districts in the East Midlands region, hardness ranges from 165 ppm to 283 ppm.
Derbyshire is served by Severn Trent Water. With hard water, limescale is unlikely to be a major concern in most homes.
Sorted by hardness — tap a town for full details.
Companies supplying water to this county.
Every postcode district in the county, sorted by hardness.
Top picks for households in hard water areas.
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 AmazonInstant 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 AmazonLearn more about water hardness and how to manage it.
Be notified when water companies in Derbyshire report changes to hardness levels.