Greater London Water Quality
Water hardness and quality data for 221 cities in Greater London, United Kingdom.
Est. average
≈338mg/L
23.7 °Clark
Hardness level
🔴 Very Hard
Based on estimates
Cities
221
221 with data
Archway
Pop. 215,667
Barking
Pop. 218,534
Becontree
Pop. 100,000
Bexley
Pop. 228,000
Brent
Pop. 329,100
City of Westminster
Pop. 247,614
Croydon
Pop. 173,314
Dagenham
Pop. 108,368
Enfield Town
Pop. 156,858
Harrow
Pop. 149,246
Ilford
Pop. 168,168
Islington
Pop. 319,143
London
Pop. 8,961,989
Sutton
Pop. 187,600
Tottenham
Pop. 130,000
Walthamstow
Pop. 109,424
Acton
Pop. 62,480
Barnet
Pop. 30,000
Battersea
Pop. 75,651
Beckenham
Pop. 60,739
Brixton
Pop. 66,300
Canary Wharf
Pop. 73,390
Canning Town
Pop. 42,667
Carshalton
Pop. 45,525
Catford
Pop. 44,905
Chelsea
Pop. 60,000
Chingford
Pop. 70,583
Chiswick
Pop. 34,337
Cricklewood
Pop. 65,000
Edmonton
Pop. 82,000
Eltham
Pop. 48,964
Feltham
Pop. 63,368
Finchley
Pop. 65,812
Fulham
Pop. 87,161
Greenford
Pop. 38,000
Greenwich
Pop. 30,578
Hayes
Pop. 93,928
Heston
Pop. 37,045
Holloway
Pop. 41,329
Hounslow
Pop. 66,292
Leytonstone
Pop. 54,696
Mitcham
Pop. 63,393
Morden
Pop. 48,233
Peckham
Pop. 71,552
Purley
Pop. 72,000
Putney
Pop. 77,140
Romford
Pop. 95,000
Ruislip
Pop. 31,000
Shepherds Bush
Pop. 39,724
South Croydon
Pop. 55,198
Southall
Pop. 78,253
Stamford Hill
Pop. 68,050
Stratford
Pop. 36,666
Streatham
Pop. 58,055
Surbiton
Pop. 38,158
Thamesmead
Pop. 31,824
Uxbridge
Pop. 70,000
Welling
Pop. 41,000
Wembley
Pop. 90,045
Willesden
Pop. 44,295
Wimbledon
Pop. 68,187
Abbey Road
Pop. 13,043
Abbey Wood
Pop. 17,700
Balham
Pop. 14,751
Barkingside
Pop. 12,609
Barnes
Pop. 21,218
Barnsbury
Pop. 10,000
Bayswater
Pop. 17,500
Belmont
Pop. 10,048
Belsize Park
Pop. 11,600
Belvedere
Pop. 11,000
Bethnal Green
Pop. 17,590
Bickley
Pop. 13,904
Biggin Hill
Pop. 10,817
Blackheath
Pop. 25,116
Blackwall
Pop. 19,461
Bow
Pop. 27,720
Brentford
Pop. 10,750
Brixton Hill
Pop. 12,458
Brockley
Pop. 17,156
Camden Town
Pop. 26,122
Canonbury
Pop. 12,072
Chalk Farm
Pop. 24,977
Charlton
Pop. 14,385
Cheam
Pop. 11,286
Chelsfield
Pop. 14,507
Chessington
Pop. 19,433
Chislehurst
Pop. 15,600
Church Street
Pop. 11,673
Cockfosters
Pop. 10,300
Collier Row
Pop. 10,100
Coulsdon
Pop. 25,530
Cranford
Pop. 12,330
Crofton Park
Pop. 14,937
Crouch End
Pop. 10,075
Crystal Palace
Pop. 12,255
Ealing Common
Pop. 15,945
Earlsfield
Pop. 15,562
East Barnet
Pop. 18,100
East Dulwich
Pop. 12,321
East Sheen
Pop. 10,348
Edgwarebury
Pop. 12,100
Elm Park
Pop. 12,048
Emerson Park
Pop. 11,977
Enfield Lock
Pop. 16,469
Forest Hill
Pop. 14,854
Friern Barnet
Pop. 17,250
Furzedown
Pop. 15,504
Gipsy Hill
Pop. 13,712
Golders Green
Pop. 18,818
Goodmayes
Pop. 13,069
Hadley Wood
Pop. 21,639
Hampton
Pop. 20,000
Hampton Wick
Pop. 10,221
Hanworth
Pop. 23,563
Harlesden
Pop. 17,162
Harold Wood
Pop. 12,443
Harringay
Pop. 16,500
Harrow on the Hill
Pop. 10,632
Harrow Road
Pop. 11,381
Harrow Weald
Pop. 14,300
Hayes
Pop. 15,908
Headstone
Pop. 14,900
Highams Park
Pop. 11,355
Highbury
Pop. 26,664
Highgate
Pop. 10,955
Hillingdon
Pop. 12,403
Holborn
Pop. 13,023
Hook
Pop. 18,973
Hornchurch
Pop. 25,470
Hornsey
Pop. 12,659
Hyde Park
Pop. 10,319
Ickenham
Pop. 13,600
Isleworth
Pop. 25,008
Kenley
Pop. 14,966
Kensal Green
Pop. 14,915
Kew
Pop. 11,436
Kidbrooke
Pop. 14,300
Kilburn
Pop. 29,027
King's Cross
Pop. 14,082
Kingston upon Thames
Pop. 10,001
Knightsbridge and Belgravia
Pop. 11,028
Ladywell
Pop. 14,515
Lancaster Gate
Pop. 10,951
Latchmere
Pop. 15,358
Lee
Pop. 14,573
Leyton
Pop. 14,184
Limehouse
Pop. 15,986
Little Venice
Pop. 10,366
Maida Hill
Pop. 11,660
Manor Park
Pop. 15,318
Marylebone
Pop. 12,157
Monkhams
Pop. 10,422
Mortlake
Pop. 10,919
Muswell Hill
Pop. 27,992
New Barnet
Pop. 14,000
New Cross
Pop. 15,756
New Malden
Pop. 23,818
Norbiton
Pop. 10,107
Norbury
Pop. 16,476
Northolt
Pop. 26,000
Northumberland Park
Pop. 14,429
Northwood
Pop. 11,300
Northwood Hills
Pop. 11,800
Notting Hill
Pop. 21,000
Orpington
Pop. 15,248
Osterley
Pop. 13,031
Palmers Green
Pop. 15,162
Perry Vale
Pop. 15,618
Pimlico
Pop. 20,709
Pinner
Pop. 19,158
Plumstead
Pop. 16,736
Ponders End
Pop. 15,664
Queen's Park
Pop. 12,756
Queenstown
Pop. 15,599
Rainham
Pop. 12,482
Regent's Park
Pop. 11,610
Richmond
Pop. 21,469
Roehampton
Pop. 16,132
Rotherhithe
Pop. 13,743
Ruislip Manor
Pop. 11,000
Sanderstead
Pop. 12,777
Seven Sisters
Pop. 15,968
Shadwell
Pop. 15,110
Shirley
Pop. 14,296
Sidcup
Pop. 10,400
Snaresbrook
Pop. 11,868
Soho
Pop. 19,634
South Norwood
Pop. 16,518
South Ruislip
Pop. 16,800
Southgate
Pop. 14,454
Spitalfields
Pop. 10,286
St James's
Pop. 10,361
St. Ann's
Pop. 14,638
St. Helier
Pop. 11,949
Stepney
Pop. 16,238
Stroud Green
Pop. 11,758
Sudbury
Pop. 14,950
Thornton Heath
Pop. 14,669
Tooting
Pop. 16,239
Tottenham Hale
Pop. 15,064
Totteridge
Pop. 15,159
Upminster
Pop. 10,000
Upper Norwood
Pop. 16,082
Vincent Square
Pop. 10,327
Wallington
Pop. 20,850
Wanstead
Pop. 11,543
Wealdstone
Pop. 18,500
West Drayton
Pop. 14,370
West Ealing
Pop. 15,169
West End
Pop. 11,543
West End of London
Pop. 10,575
West Ham
Pop. 15,551
West Wickham
Pop. 14,276
Westbourne
Pop. 11,686
Whitechapel
Pop. 14,862
Wimbledon Park
Pop. 11,197
Wood Green
Pop. 28,453
Woodford Green
Pop. 22,803
Worcester Park
Pop. 16,031
World's End
Pop. 13,700