WaterWater Hardness in York
North Yorkshire, Yorkshire • 29 postcode districts
Hard
The average water hardness in York is 214 ppm, classified as hard. York is served by Yorkshire Water, covering 29 postcode districts across North Yorkshire in the Yorkshire region.
Hardness varies across the area — see the table below for a breakdown by postcode district.
Water Hardness by Postcode in York
| Postcode | Water Company | Hardness | PPM | Level |
|---|---|---|---|---|
| YO8 | Yorkshire Water | 280 ppm | Hard | |
| YO7 | Yorkshire Water | 279 ppm | Hard | |
| YO43 | Yorkshire Water | 278 ppm | Hard | |
| YO42 | Yorkshire Water | 277 ppm | Hard | |
| YO41 | Yorkshire Water | 276 ppm | Hard | |
| YO1 | Yorkshire Water | 273 ppm | Hard | |
| YO32 | Yorkshire Water | 244 ppm | Hard | |
| YO31 | Yorkshire Water | 243 ppm | Hard | |
| YO30 | Yorkshire Water | 242 ppm | Hard | |
| YO26 | Yorkshire Water | 215 ppm | Hard | |
| YO25 | Yorkshire Water | 214 ppm | Hard | |
| YO24 | Yorkshire Water | 213 ppm | Hard | |
| YO23 | Yorkshire Water | 212 ppm | Hard | |
| YO22 | Yorkshire Water | 211 ppm | Hard | |
| YO21 | Yorkshire Water | 210 ppm | Hard | |
| YO62 | Yorkshire Water | 192 ppm | Hard | |
| YO61 | Yorkshire Water | 191 ppm | Hard | |
| YO60 | Yorkshire Water | 190 ppm | Hard | |
| YO19 | Yorkshire Water | 185 ppm | Hard | |
| YO18 | Yorkshire Water | 184 ppm | Hard | |
| YO17 | Yorkshire Water | 183 ppm | Hard | |
| YO16 | Yorkshire Water | 182 ppm | Hard | |
| YO15 | Yorkshire Water | 181 ppm | Hard | |
| YO14 | Yorkshire Water | 180 ppm | Moderately Hard | |
| YO13 | Yorkshire Water | 179 ppm | Moderately Hard | |
| YO12 | Yorkshire Water | 178 ppm | Moderately Hard | |
| YO11 | Yorkshire Water | 177 ppm | Moderately Hard | |
| YO10 | Yorkshire Water | 176 ppm | Moderately Hard | |
| YO51 | Yorkshire Water | 158 ppm | Moderately Hard |
Water Companies Serving York
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