68 postcode districts testedWater quality in West Midlands
According to TapWater.uk's analysis, West Midlands scores 9.1/10 for drinking water quality in 2026, based on data from 68 postcode districts. Water quality across Birmingham, Coventry, Wolverhampton and the Black Country. Supplied by Severn Trent.
9.1 / 10
68 areas tested · 1 supplier
Tap water in West Midlands has an average safety score of 9.1 out of 10 based on testing across 68 postcode districts. Water is supplied by Severn Trent. The overall water quality is good. Data is sourced from the Environment Agency and water company testing via the Stream Water Data Portal.
Cities in West Midlands
Average water quality score by city.
River health around West Midlands
None of the 24 rivers and waters that West Midlands drains into is rated good by the Environment Agency. All of them fail the chemical test, as every river in England does, because of long-lasting pollutants such as mercury and PFOS. This describes the rivers, not your tap water.
| River or water | Ecological health | Postcode districts |
|---|---|---|
| Rea from Bourn Brook to River Tame | Bad | B5, B7 |
| Cole from Springfield to Hatchford-Kingshurst Brook | Poor | B10, B11, B12, B13, B25, B33, B34 |
| Penk from Source toSaredon Brook | Poor | WV6, WV8, WV9, WV10 |
| Rea source to Bourn Brook | Poor | B30, B31, B38, B45 |
| Sherbourne - source to conf R Sowe | Poor | CV1, CV3, CV5, CV7 |
| Cole from Source to Springfield | Poor | B14, B28 |
| Sowe - conf Breach Bk to conf Withy Bk | Poor | CV2, CV6 |
| Longton Bk - source to R Trent | Poor | ST3 |
| Penk - Saredon Bk to Whiston Bk | Poor | ST19 |
| Hockley Brook Catchment (trib of Rea) | Moderate | B2, B3, B4, B16, B18, B19 |
| Tame - conf two arms to R Rea | Moderate | B6, B20, B21, B23, B42, B44 |
| Bourn Brook from Source to R Rea | Moderate | B1, B15, B17, B29, B32 |
Showing the 12 lowest rated of 24. Environment Agency classification, 2025. River health across England
Water suppliers
- Severn Trent68 areas
All postcode areas in West Midlands
Every postcode district we monitor in this region.
B1B10B11B12B13B14B15B16B17B18B19B2B20B21B23B24B25B26B27B28B29B3B30B31B32B33B34B35B38B4B42B44B45B5B6B7B72B73B74B75B76B8B9CV1CV2CV3CV4CV5CV6CV7DY7ST1ST19ST2ST3ST4ST6WS6WV1WV10WV11WV14WV2WV3WV4WV5WV6WV8WV9
Questions about West Midlands water
Is tap water safe in West Midlands?
Based on our analysis of 68 postcode districts in West Midlands, the average water quality score is 9.1/10, which is safe. Water is supplied by Severn Trent.
Which area has the best water in West Midlands?
WS6 (South Staffordshire) has the highest water quality score in West Midlands at 9.6/10.
Which area has the worst water in West Midlands?
CV3 (Coventry) has the lowest water quality score in West Midlands at 8.4/10. Check the postcode page for details on specific contaminants.
Who supplies water in West Midlands?
Water in West Midlands is supplied by Severn Trent.
Data sourced from the Environment Agency Water Quality Archive and water company testing via the Stream Water Data Portal. See our methodology for how scores are calculated. Reviewed by the TapWater.uk research team.