WaterWater Hardness in Oxfordshire
South East • 26 postcode districts • 1 towns
Water Hardness Across Oxfordshire
The average water hardness in Oxfordshire is 304 ppm, classified as very hard. Across 26 postcode districts in the South East region, hardness ranges from 250 ppm to 350 ppm.
Oxfordshire is served by Thames Water. With very hard water, residents may benefit from a <a href="/water-softener-guide/">water softener</a> to reduce limescale and protect appliances.
Towns in Oxfordshire
| Town | Avg Hardness | PPM | Level |
|---|---|---|---|
| Oxford | 304 ppm | Very Hard |
Water Companies in Oxfordshire
All Postcodes in Oxfordshire
| Postcode | Town | Hardness | PPM | Level |
|---|---|---|---|---|
| OX13 | Abingdon | 350 ppm | Very Hard | |
| OX12 | Wantage | 349 ppm | Very Hard | |
| OX44 | Oxford | 349 ppm | Very Hard | |
| OX11 | Didcot | 348 ppm | Very Hard | |
| OX10 | Wallingford | 347 ppm | Very Hard | |
| OX9 | Thame | 335 ppm | Very Hard | |
| OX7 | Chipping Norton | 333 ppm | Very Hard | |
| OX5 | Kidlington | 331 ppm | Very Hard | |
| OX4 | Oxford | 330 ppm | Very Hard | |
| OX3 | Oxford | 329 ppm | Very Hard | |
| OX2 | Oxford | 328 ppm | Very Hard | |
| OX1 | Oxford | 327 ppm | Very Hard | |
| OX39 | Chinnor | 321 ppm | Very Hard | |
| OX33 | Oxford | 315 ppm | Very Hard | |
| OX29 | Witney | 288 ppm | Hard | |
| OX28 | Witney | 287 ppm | Hard | |
| OX27 | Bicester | 286 ppm | Hard | |
| OX26 | Bicester | 285 ppm | Hard | |
| OX25 | Bicester | 284 ppm | Hard | |
| OX20 | Woodstock | 279 ppm | Hard | |
| OX18 | Carterton | 254 ppm | Hard | |
| OX17 | Banbury | 253 ppm | Hard | |
| OX49 | Watlington | 253 ppm | Hard | |
| OX16 | Banbury | 252 ppm | Hard | |
| OX15 | Banbury | 251 ppm | Hard | |
| OX14 | Abingdon | 250 ppm | Hard |
Recommended Products for Oxfordshire
Top picks for households in very hard water areas across Oxfordshire.
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 South East • Hardest water areas • Softest water areas • Hard water solutions
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