WaterWater Hardness in Swindon
Wiltshire, South West • 18 postcode districts
Hard
The average water hardness in Swindon is 182 ppm, classified as hard. Swindon is served by Wessex Water, covering 18 postcode districts across Wiltshire in the South West region.
Hardness varies across the area — see the table below for a breakdown by postcode district.
Water Hardness by Postcode in Swindon
| Postcode | Water Company | Hardness | PPM | Level |
|---|---|---|---|---|
| SN9 | Wessex Water | 207 ppm | Hard | |
| SN8 | Wessex Water | 206 ppm | Hard | |
| SN7 | Wessex Water | 205 ppm | Hard | |
| SN6 | Wessex Water | 204 ppm | Hard | |
| SN5 | Wessex Water | 203 ppm | Hard | |
| SN4 | Wessex Water | 202 ppm | Hard | |
| SN3 | Wessex Water | 201 ppm | Hard | |
| SN2 | Wessex Water | 200 ppm | Hard | |
| SN1 | Wessex Water | 199 ppm | Hard | |
| SN26 | Wessex Water | 189 ppm | Hard | |
| SN25 | Wessex Water | 188 ppm | Hard | |
| SN16 | Wessex Water | 156 ppm | Moderately Hard | |
| SN15 | Wessex Water | 155 ppm | Moderately Hard | |
| SN14 | Wessex Water | 154 ppm | Moderately Hard | |
| SN13 | Wessex Water | 153 ppm | Moderately Hard | |
| SN12 | Wessex Water | 152 ppm | Moderately Hard | |
| SN11 | Wessex Water | 151 ppm | Moderately Hard | |
| SN10 | Wessex Water | 150 ppm | Moderately Hard |
Water Companies Serving Swindon
Get Water Hardness Updates
Be notified when your water company reports changes to hardness levels.