WaterYorkshire Water Water Hardness
Yorkshire & Humberside • 217 postcodes served
Hard
215
Average ppm
150
Minimum ppm
300
Maximum ppm
217
Postcodes Served
About Yorkshire Water
Yorkshire Water supplies water and wastewater services to around 5 million customers across Yorkshire. The region has mixed geology — soft water from Pennine reservoirs in the west and harder groundwater in the east.
Hardness Distribution
0
Soft (0%)
0
Slightly Hard (0%)
59
Moderate (27%)
158
Hard (73%)
0
Very Hard (0%)
All Areas Served by Yorkshire Water
| Postcode | Town | Hardness | PPM | Level |
|---|---|---|---|---|
| BD10 | Bradford | 300 ppm | Hard | |
| S12 | Sheffield | 300 ppm | Hard | |
| LS9 | Leeds | 299 ppm | Hard | |
| S11 | Sheffield | 299 ppm | Hard | |
| LS8 | Leeds | 298 ppm | Hard | |
| S10 | Sheffield | 298 ppm | Hard | |
| LS7 | Leeds | 297 ppm | Hard | |
| LS6 | Leeds | 296 ppm | Hard | |
| LS5 | Leeds | 295 ppm | Hard | |
| LS4 | Leeds | 294 ppm | Hard | |
| LS3 | Leeds | 293 ppm | Hard | |
| LS2 | Leeds | 292 ppm | Hard | |
| LS1 | Leeds | 291 ppm | Hard | |
| HD9 | Holmfirth | 280 ppm | Hard | |
| S9 | Sheffield | 280 ppm | Hard | |
| YO8 | Selby | 280 ppm | Hard | |
| HD8 | Huddersfield | 279 ppm | Hard | |
| S8 | Sheffield | 279 ppm | Hard | |
| YO7 | Thirsk | 279 ppm | Hard | |
| HD7 | Huddersfield | 278 ppm | Hard | |
| S7 | Sheffield | 278 ppm | Hard | |
| YO43 | York | 278 ppm | Hard | |
| HD6 | Brighouse | 277 ppm | Hard | |
| S6 | Sheffield | 277 ppm | Hard | |
| YO42 | York | 277 ppm | Hard | |
| HD5 | Huddersfield | 276 ppm | Hard | |
| S5 | Sheffield | 276 ppm | Hard | |
| YO41 | York | 276 ppm | Hard | |
| HD4 | Huddersfield | 275 ppm | Hard | |
| S4 | Sheffield | 275 ppm | Hard | |
| HD3 | Huddersfield | 274 ppm | Hard | |
| S3 | Sheffield | 274 ppm | Hard | |
| HD2 | Huddersfield | 273 ppm | Hard | |
| S2 | Sheffield | 273 ppm | Hard | |
| YO1 | York | 273 ppm | Hard | |
| HD1 | Huddersfield | 272 ppm | Hard | |
| S1 | Sheffield | 272 ppm | Hard | |
| HU20 | Cottingham | 267 ppm | Hard | |
| DN41 | Grimsby | 265 ppm | Hard | |
| DN40 | Immingham | 264 ppm | Hard | |
| S45 | Chesterfield | 251 ppm | Hard | |
| S44 | Chesterfield | 250 ppm | Hard | |
| S43 | Chesterfield | 249 ppm | Hard | |
| S42 | Chesterfield | 248 ppm | Hard | |
| S41 | Chesterfield | 247 ppm | Hard | |
| S40 | Chesterfield | 246 ppm | Hard | |
| YO32 | York | 244 ppm | Hard | |
| HU19 | Withernsea | 243 ppm | Hard | |
| YO31 | York | 243 ppm | Hard | |
| HU18 | Hornsea | 242 ppm | Hard | |
| YO30 | York | 242 ppm | Hard | |
| HU17 | Beverley | 241 ppm | Hard | |
| DN39 | Ulceby | 240 ppm | Hard | |
| HU16 | Cottingham | 240 ppm | Hard | |
| BD9 | Bradford | 239 ppm | Hard | |
| DN38 | Barnetby | 239 ppm | Hard | |
| HU15 | Brough | 239 ppm | Hard | |
| BD8 | Bradford | 238 ppm | Hard | |
| DN37 | Grimsby | 238 ppm | Hard | |
| HU14 | North Ferriby | 238 ppm | Hard | |
| BD7 | Bradford | 237 ppm | Hard | |
| DN36 | Grimsby | 237 ppm | Hard | |
| HU13 | Hessle | 237 ppm | Hard | |
| HU9 | Hull | 237 ppm | Hard | |
| BD6 | Bradford | 236 ppm | Hard | |
| DN35 | Cleethorpes | 236 ppm | Hard | |
| HU12 | Hull | 236 ppm | Hard | |
| HU8 | Hull | 236 ppm | Hard | |
| BD5 | Bradford | 235 ppm | Hard | |
| DN34 | Grimsby | 235 ppm | Hard | |
| HU11 | Hull | 235 ppm | Hard | |
| HU7 | Hull | 235 ppm | Hard | |
| BD4 | Bradford | 234 ppm | Hard | |
| DN33 | Grimsby | 234 ppm | Hard | |
| HU10 | Hull | 234 ppm | Hard | |
| HU6 | Hull | 234 ppm | Hard | |
| BD3 | Bradford | 233 ppm | Hard | |
| DN32 | Grimsby | 233 ppm | Hard | |
| HU5 | Hull | 233 ppm | Hard | |
| BD2 | Bradford | 232 ppm | Hard | |
| DN31 | Grimsby | 232 ppm | Hard | |
| HU4 | Hull | 232 ppm | Hard | |
| BD1 | Bradford | 231 ppm | Hard | |
| HU3 | Hull | 231 ppm | Hard | |
| HU2 | Hull | 230 ppm | Hard | |
| HU1 | Hull | 229 ppm | Hard | |
| S81 | Worksop | 228 ppm | Hard | |
| S80 | Worksop | 227 ppm | Hard | |
| HG5 | Knaresborough | 224 ppm | Hard | |
| HG4 | Ripon | 223 ppm | Hard | |
| HG3 | Harrogate | 222 ppm | Hard | |
| WF9 | Pontefract | 222 ppm | Hard | |
| HG2 | Harrogate | 221 ppm | Hard | |
| WF8 | Pontefract | 221 ppm | Hard | |
| HG1 | Harrogate | 220 ppm | Hard | |
| WF7 | Pontefract | 220 ppm | Hard | |
| S36 | Sheffield | 219 ppm | Hard | |
| WF6 | Normanton | 219 ppm | Hard | |
| S35 | Sheffield | 218 ppm | Hard | |
| WF5 | Ossett | 218 ppm | Hard | |
| WF4 | Wakefield | 217 ppm | Hard | |
| S33 | Hope Valley | 216 ppm | Hard | |
| WF3 | Wakefield | 216 ppm | Hard | |
| S32 | Hope Valley | 215 ppm | Hard | |
| WF2 | Wakefield | 215 ppm | Hard | |
| YO26 | York | 215 ppm | Hard | |
| WF1 | Wakefield | 214 ppm | Hard | |
| YO25 | Driffield | 214 ppm | Hard | |
| YO24 | York | 213 ppm | Hard | |
| YO23 | York | 212 ppm | Hard | |
| YO22 | Whitby | 211 ppm | Hard | |
| YO21 | Whitby | 210 ppm | Hard | |
| LS29 | Ilkley | 208 ppm | Hard | |
| LS28 | Pudsey | 207 ppm | Hard | |
| LS27 | Leeds | 206 ppm | Hard | |
| LS26 | Leeds | 205 ppm | Hard | |
| LS25 | Leeds | 204 ppm | Hard | |
| LS24 | Tadcaster | 203 ppm | Hard | |
| LS23 | Wetherby | 202 ppm | Hard | |
| LS22 | Wetherby | 201 ppm | Hard | |
| DN22 | Retford | 200 ppm | Hard | |
| LS21 | Otley | 200 ppm | Hard | |
| DN21 | Gainsborough | 199 ppm | Hard | |
| LS20 | Leeds | 199 ppm | Hard | |
| S75 | Barnsley | 199 ppm | Hard | |
| WF17 | Batley | 199 ppm | Hard | |
| DN20 | Brigg | 198 ppm | Hard | |
| S74 | Barnsley | 198 ppm | Hard | |
| WF16 | Heckmondwike | 198 ppm | Hard | |
| S73 | Barnsley | 197 ppm | Hard | |
| WF15 | Liversedge | 197 ppm | Hard | |
| S72 | Barnsley | 196 ppm | Hard | |
| WF14 | Mirfield | 196 ppm | Hard | |
| S71 | Barnsley | 195 ppm | Hard | |
| WF13 | Dewsbury | 195 ppm | Hard | |
| S70 | Barnsley | 194 ppm | Hard | |
| WF12 | Dewsbury | 194 ppm | Hard | |
| WF11 | Knottingley | 193 ppm | Hard | |
| WF10 | Castleford | 192 ppm | Hard | |
| YO62 | York | 192 ppm | Hard | |
| YO61 | York | 191 ppm | Hard | |
| YO60 | York | 190 ppm | Hard | |
| BD24 | Settle | 186 ppm | Hard | |
| S26 | Sheffield | 186 ppm | Hard | |
| BD23 | Skipton | 185 ppm | Hard | |
| S25 | Sheffield | 185 ppm | Hard | |
| YO19 | York | 185 ppm | Hard | |
| BD22 | Keighley | 184 ppm | Hard | |
| YO18 | Pickering | 184 ppm | Hard | |
| BD21 | Keighley | 183 ppm | Hard | |
| HX7 | Hebden Bridge | 183 ppm | Hard | |
| YO17 | Malton | 183 ppm | Hard | |
| BD20 | Keighley | 182 ppm | Hard | |
| HX6 | Sowerby Bridge | 182 ppm | Hard | |
| YO16 | Bridlington | 182 ppm | Hard | |
| HX5 | Elland | 181 ppm | Hard | |
| S21 | Sheffield | 181 ppm | Hard | |
| YO15 | Bridlington | 181 ppm | Hard | |
| DN9 | Doncaster | 180 ppm | Moderately Hard | |
| HX4 | Halifax | 180 ppm | Moderately Hard | |
| S20 | Sheffield | 180 ppm | Moderately Hard | |
| YO14 | Filey | 180 ppm | Moderately Hard | |
| DN8 | Doncaster | 179 ppm | Moderately Hard | |
| HX3 | Halifax | 179 ppm | Moderately Hard | |
| YO13 | Scarborough | 179 ppm | Moderately Hard | |
| DN7 | Doncaster | 178 ppm | Moderately Hard | |
| HX2 | Halifax | 178 ppm | Moderately Hard | |
| YO12 | Scarborough | 178 ppm | Moderately Hard | |
| DN6 | Doncaster | 177 ppm | Moderately Hard | |
| HX1 | Halifax | 177 ppm | Moderately Hard | |
| YO11 | Scarborough | 177 ppm | Moderately Hard | |
| DN5 | Doncaster | 176 ppm | Moderately Hard | |
| YO10 | York | 176 ppm | Moderately Hard | |
| DN4 | Doncaster | 175 ppm | Moderately Hard | |
| LS19 | Leeds | 175 ppm | Moderately Hard | |
| DN19 | Barrow Upon Humber | 174 ppm | Moderately Hard | |
| DN3 | Doncaster | 174 ppm | Moderately Hard | |
| LS18 | Leeds | 174 ppm | Moderately Hard | |
| DN18 | Barton Upon Humber | 173 ppm | Moderately Hard | |
| DN2 | Doncaster | 173 ppm | Moderately Hard | |
| LS17 | Leeds | 173 ppm | Moderately Hard | |
| DN1 | Doncaster | 172 ppm | Moderately Hard | |
| DN17 | Scunthorpe | 172 ppm | Moderately Hard | |
| LS16 | Leeds | 172 ppm | Moderately Hard | |
| DN16 | Scunthorpe | 171 ppm | Moderately Hard | |
| LS15 | Leeds | 171 ppm | Moderately Hard | |
| DN15 | Scunthorpe | 170 ppm | Moderately Hard | |
| LS14 | Leeds | 170 ppm | Moderately Hard | |
| DN14 | Goole | 169 ppm | Moderately Hard | |
| LS13 | Leeds | 169 ppm | Moderately Hard | |
| LS12 | Leeds | 168 ppm | Moderately Hard | |
| DN12 | Doncaster | 167 ppm | Moderately Hard | |
| LS11 | Leeds | 167 ppm | Moderately Hard | |
| S66 | Rotherham | 167 ppm | Moderately Hard | |
| DN11 | Doncaster | 166 ppm | Moderately Hard | |
| LS10 | Leeds | 166 ppm | Moderately Hard | |
| S65 | Rotherham | 166 ppm | Moderately Hard | |
| DN10 | Doncaster | 165 ppm | Moderately Hard | |
| S64 | Mexborough | 165 ppm | Moderately Hard | |
| S63 | Rotherham | 164 ppm | Moderately Hard | |
| S62 | Rotherham | 163 ppm | Moderately Hard | |
| S61 | Rotherham | 162 ppm | Moderately Hard | |
| S60 | Rotherham | 161 ppm | Moderately Hard | |
| BD19 | Cleckheaton | 158 ppm | Moderately Hard | |
| YO51 | York | 158 ppm | Moderately Hard | |
| BD18 | Shipley | 157 ppm | Moderately Hard | |
| BD17 | Shipley | 156 ppm | Moderately Hard | |
| BD16 | Bingley | 155 ppm | Moderately Hard | |
| S18 | Dronfield | 155 ppm | Moderately Hard | |
| BD15 | Bradford | 154 ppm | Moderately Hard | |
| S17 | Sheffield | 154 ppm | Moderately Hard | |
| BD14 | Bradford | 153 ppm | Moderately Hard | |
| BD13 | Bradford | 152 ppm | Moderately Hard | |
| BD12 | Bradford | 151 ppm | Moderately Hard | |
| S14 | Sheffield | 151 ppm | Moderately Hard | |
| BD11 | Bradford | 150 ppm | Moderately Hard | |
| S13 | Sheffield | 150 ppm | Moderately Hard |
Recommended Products for Yorkshire Water Customers
Popular choices for households on hard water supplied by Yorkshire Water.
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 ~£30A quick, affordable upgrade. Reduces chlorine and limescale at the showerhead — fits any standard UK shower hose in minutes. Protects skin and hair from hard water damage.
View on AmazonGet Water Hardness Updates
Be notified when your water company reports changes to hardness levels.