Buckinghamshire · South East

Is Milton Keynes water hard or soft?

Very Hard at 301 ppm · 26 postcode districts

  • Supplier Anglian Water
  • County Buckinghamshire
  • Postcodes 26
Area average
301
ppm CaCO₃
Very Hard
Soft
Moderate
Hard
Very hard
0100200300400+

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The average water hardness in Milton Keynes is 301 ppm, classified as very hard. Milton Keynes is served by Anglian Water, covering 26 postcode districts across Buckinghamshire in the South East region.

Hardness varies across the area — see the table below for a breakdown by postcode district. MK19 has the hardest water at 320 ppm, while MK40 is the softest at 259 ppm.

By postcode

Water Hardness by Postcode in Milton Keynes

Sorted by hardness — tap a postcode for full details.

Postcode Water Company Hardness PPM Level
MK19 Anglian Water
320
320 ppm Very Hard
MK18 Anglian Water
319
319 ppm Very Hard
MK17 Anglian Water
318
318 ppm Very Hard
MK9 Anglian Water
318
318 ppm Very Hard
MK16 Anglian Water
317
317 ppm Very Hard
MK8 Anglian Water
317
317 ppm Very Hard
MK15 Anglian Water
316
316 ppm Very Hard
MK7 Anglian Water
316
316 ppm Very Hard
MK14 Anglian Water
315
315 ppm Very Hard
MK6 Anglian Water
315
315 ppm Very Hard
MK13 Anglian Water
314
314 ppm Very Hard
MK5 Anglian Water
314
314 ppm Very Hard
MK12 Anglian Water
313
313 ppm Very Hard
MK4 Anglian Water
313
313 ppm Very Hard
MK11 Anglian Water
312
312 ppm Very Hard
MK3 Anglian Water
312
312 ppm Very Hard
MK10 Anglian Water
311
311 ppm Very Hard
MK2 Anglian Water
311
311 ppm Very Hard
MK1 Anglian Water
310
310 ppm Very Hard
MK46 Anglian Water
265
265 ppm Hard
MK45 Anglian Water
264
264 ppm Hard
MK44 Anglian Water
263
263 ppm Hard
MK43 Anglian Water
262
262 ppm Hard
MK42 Anglian Water
261
261 ppm Hard
MK41 Anglian Water
260
260 ppm Hard
MK40 Anglian Water
259
259 ppm Hard
Suppliers

Water Companies Serving Milton Keynes

Tap for full coverage area and hardness data.

Anglian Water

321 ppm Very Hard

Water Hardness Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal
Recommended

Products for Milton Keynes

Popular choices for households dealing with very hard water.

Splendid Twin Tank Water Softener

From ~£400

Twin-tank electric softener sized for 1 to 7 bedroom homes. Removes limescale from pipes, boilers, and appliances and delivers continuous soft water, with metered regeneration to keep salt use low.

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Philips Shower Filter

From ~£30

Quick win for skin and hair in hard water areas. Reduces chlorine and limescale, fits standard shower hoses in minutes, no tools needed. Cartridge lasts around 6 months.

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BRITA Marella Water Filter Jug

From ~£20

UK's best-selling filter jug. Reduces limescale, chlorine, and metals for better-tasting tap water. Quick first step alongside a softener.

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FAQ

Common questions about Milton Keynes water

Is Milton Keynes water hard or soft?
Milton Keynes is classified as very hard, averaging 301 ppm across 26 postcode districts. Expect visible limescale on kettles and taps within weeks at this level.
Which postcode in Milton Keynes has the hardest water?
MK19 has the hardest water in Milton Keynes at 320 ppm, while MK40 is the softest at 259 ppm. See the full table above for every district.
Which water company supplies Milton Keynes?
Milton Keynes is supplied by Anglian Water, covering 26 postcode districts across Buckinghamshire.
Is tap water in Milton Keynes safe to drink?
Yes. All tap water in Milton Keynes meets UK drinking water standards. Hardness affects taste and limescale buildup but not safety.
Do I need a water softener in Milton Keynes?
At 301 ppm, many households in Milton Keynes notice limescale in kettles and showerheads within weeks. A shower filter is the cheapest first step; a whole-house softener gives the most complete protection.
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