Scottish Water
The publicly owned water and sewerage provider for the whole of Scotland, and the only UK water utility not in private ownership. It supplies a country with roughly twice England’s rainfall and a small population, so its constraint is treatment and distribution rather than resource availability.
Key facts
- Country
- Scotland
- Ownership
- Publicly owned statutory corporation, answerable to Scottish Ministers
- Services
- Water and wastewater
- Population served
- 5.5 million
- Regulated by
- DWQR (quality), SEPA (environment), WICS (economic)
Data held
Where this number comes from
Source: WICS — Scottish water industry economic regulation, Annual performance report — leakage. Licence: Open — attribution required (attribution required).
Method: Company-reported three-year average leakage for the regulatory year running April to March, calculated using the industry water balance methodology. Includes losses from both company mains and customer supply pipes.
Uncertainty: Leakage is not measured directly. It is the residual of a water balance, so it inherits the error of every other term in that balance — particularly unmetered consumption estimates.
Absolute leakage scales with company size and must not be used to rank companies. Compare using leakage per property instead.
Retrieved 23 August 2026.
Where its water comes from
Predominantly upland surface water and reservoirs, with a high proportion of soft, coloured water requiring colour removal rather than desalination or nitrate treatment.
Notable
- Household water and sewerage charges are collected with council tax rather than billed separately.
- The public ownership model makes Scottish Water a standing point of comparison in UK debates about water privatisation.
Relationships
- Serves: Scottish Water service area
Related intelligence
Sources
- Water Services Regulation Authority — Water company performance and price review data. Open — attribution required · Open Government Licence v3.0
- World Bank / International Benchmarking Network — IBNET water utility benchmarking database. Open — attribution required · CC BY 4.0