Water Hardness in Northamptonshire
East Midlands • 19 postcode districts • 1 towns
Water Hardness Across Northamptonshire
The average water hardness in Northamptonshire is 278 ppm, classified as hard. Across 19 postcode districts in the East Midlands region, hardness ranges from 255 ppm to 298 ppm.
Northamptonshire is served by Anglian Water. With hard water, residents may benefit from a <a href="/water-softener-guide/">water softener</a> to reduce limescale and protect appliances.
Towns in Northamptonshire
| Town | Avg Hardness | PPM | Level |
|---|---|---|---|
| Northampton | 278 ppm | Hard |
Water Companies in Northamptonshire
All Postcodes in Northamptonshire
| Postcode | Town | Hardness | PPM | Level |
|---|---|---|---|---|
| NN9 | Wellingborough | 298 ppm | Hard | |
| NN29 | Wellingborough | 297 ppm | Hard | |
| NN8 | Wellingborough | 297 ppm | Hard | |
| NN7 | Northampton | 296 ppm | Hard | |
| NN6 | Northampton | 295 ppm | Hard | |
| NN5 | Northampton | 294 ppm | Hard | |
| NN4 | Northampton | 293 ppm | Hard | |
| NN3 | Northampton | 292 ppm | Hard | |
| NN2 | Northampton | 291 ppm | Hard | |
| NN1 | Northampton | 290 ppm | Hard | |
| NN18 | Corby | 263 ppm | Hard | |
| NN17 | Corby | 262 ppm | Hard | |
| NN16 | Kettering | 261 ppm | Hard | |
| NN15 | Kettering | 260 ppm | Hard | |
| NN14 | Kettering | 259 ppm | Hard | |
| NN13 | Brackley | 258 ppm | Hard | |
| NN12 | Towcester | 257 ppm | Hard | |
| NN11 | Daventry | 256 ppm | Hard | |
| NN10 | Rushden | 255 ppm | Hard |
Recommended Products for Northamptonshire
Top picks for households in hard water areas across Northamptonshire.
Water2Buy W2B200 Water Softener
From ~£400Best-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 AmazonPhilips AWP1775 Shower Filter
From ~£30Instant 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 AmazonHard Water Guides
Learn more about water hardness and how to manage it.
All counties in East Midlands • Hardest water areas • Softest water areas • Hard water solutions
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