Who is my Water Company?

Have you ever found yourself wondering where your water comes from? Well, look no further.

Water suppliers cover a range of cities across the UK and so perhaps if you are moving to a new area, or if you are just intrigued, knowing who your water supplier can be useful information.

Spanning England and Wales, the below guide breaks the country into the following regions:

  1. Northern
  2. Wales
  3. Central and Eastern
  4. London and South East
  5. Western

These regions cover, seemingly self-explanatory, areas in the north of England, Wales, central and eastern England, London and surrounding cities, and the west of England, respectively.

Anglian Water

Anglian Water’s region spans from the Humber estuary to the Thames estuary, and across the east coast. They are mostly responsible for pipes and sewers in the areas they cover.

Northern EnglandHartlepool
Central and EasternScunthorpe Grimsby Lincoln Gainsborough Skegness Peterborough Kettering Northampton Buckingham King’s Lynn Ely Thetford Haverhill Braintree Ipswich Norwich Grantham

Northumbrian Water

Northumbrian Water supplies 2.7 million people in the North East, specifically, of England. Their largest supply areas are in Tyneside, Wearside and Teesside, though supply some areas in Northumberland and Country Durham

Northern EnglandBerwick-upon-Tweed Alnwick Morpeth Newcastle upon Tyne Darlington  

Severn Trent Water         

Severn Trent’s supply area stretches across the centre of the UK, from Bristol, the mid-Wales, to the East Midlands.

Northern EnglandManchester Crewe Chester Liverpool Burnley Blackpool Lancaster Preston  
Central and EasternLudlow Oswestry Gloucester Evesham Warwick Rugby Birmingham Leicester Derby Mansfield Worksop Buxton Stoke-on-Trent Stafford Wolverhampton  

Yorkshire Water

Yorkshire Water services West Yorkshire, South Yorkshire, East Riding of Yorkshire, part of North Lincolnshire, most of North Yorkshire and some parts of Derbyshire.

Northern EnglandLeeds York Doncaster Sheffield Kingston upon Hull Bridlington Scarborough Whitby Thirsk

United Utilities

United Utilities covers the water network in the northwest of England – this area primarily includes Cumbria, Greater Manchester, Lancashire, Merseyside, Chesire and a small area of Derbyshire,

Northern EnglandCarlisle Brough Kendal Workington

Dwr Cymru Welsh Water (DWR)

DWR supplies almost 3 million people across Wales, Herefordshire and parts of Deeside.

WalesLlandudno Porthmadog Barmouth BalaAberystwyth Cardigan Haverfordwest Tenby Swansea Carmarthen Cardiff Cwmbran Monmouth Brecon Builth Wells
Central and EasternHereford

Hafren Dyfrdwy

Hafren Dyfrdwy region stretches right across the heart of Wales.

Wales  Welshpool Llanidloes

South Staffordshire Water

South Staffordshire Water was initially formed to only supply the inhabitants of the Black Country. Nowadays their region includes Walsall, Sandwell, Dudley, Tamworth, Uttoxeter, Burton, Lichfield, Sutton Coldfield, and Cannock.

Central and EasternCannock Uttoxeter Tamworth

Essex and Sussex Water

Essex and Sussex Water’s region includes the southeast of Norfolk, east Suffolk, Essex and the London Boroughs of Barking and Dagenham, Havering, and Redbridge in Greater London.

Central and EasternAldeburgh Dagenham Southend-on-Sea Chelmsford 

Cambridge Water

Cambridge Water supplies Cambridge and some of the surrounding towns.

Central and EasternCambridge 

Affinity Water

Affinity Water supply parts of Bedfordshire, Berkshire, Buckinghamshire, Essex, Hertfordshire, Surrey, the London Boroughs of Harrow and Hillingdon and parts of the London Boroughs of Barnet, Brent, Ealing and Enfield. They also supply water to the Tendring peninsula in Essex and the Folkestone and Dover areas of Kent.

Central and EasternHarwich 
London and South EastFolkestone St Albans Luton Stevenage Stansted Harlow Royston Ascot

Portsmouth Water

Portsmouth Water covers a region which stretches across Hampshire and West Sussex.

London and South EastGosport

South East Water

South East Water covers a region which spans Kent, Susses, Surry, Berkshire, and Hampshire.

London and South EastBasingstoke Petersfield Bracknell Tonbridge Maidstone Ashford

Southern Water Services

Southern Water Services covers the area covering parts of Dorset, Hampshire, and Wiltshire.

London and South EastSheemess Chatham Margate Hastings Littlehampton And over Southampton

SES Water

SES Water company supplies the areas across east Surrey, west Sussex, west Kent, and south London.

London and South EastOxted Dorking Croydon

Thames Water

Thames Water covers areas across Gloucestershire, areas in Kent and some of the eats of Essex. They share borders with a lot of other suppliers due to being so central and so it is best to double check your supplier area.

London and South EastOxford Aylesbury High Wycombe Reading Newbury Swindon Cirencester Moreton-in-Marsh Bunbury

South West Water

South West water provides services to Devon, Cornwall, small parts of Dorset and Somerset – that’s around 1.6 million people!

WesternOkehampton ExeterTiverton Ilfracombe Lyme RegisBarnstapleBodmin BudePlymouth Truro Newquay

Bristol Water

Bristol Water supplies areas across Bristol, north Somerset, areas of Bath, north-east Somerset and some of south Gloucestershire.

WesternBristol Glastonbury Weston-super-Mare

Wessex Water

Wessex Water serves customers cross the south west area of England. This area includes Dorset, Somerset, Bristol, most of Wiltshire, and also parts of Gloucestershire and Hampshire.

WesternBath Warminster Salisbury Devizes Yeovil Minehead

Bournemouth Water

Bournemouth Water supplies Bournemouth and some of the surrounding smaller towns.


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