New Hampshire Tap Water Quality
Explore tap water quality data for counties across New Hampshire. View water system reports, track violations, monitor drinking water safety, and check fluoridation status in your community.
Total Counties
176
Communities with public water systems
Total Population
897,337
Residents served by public water systems
Water Systems
712
Public water systems statewide
Serious Violators
10
Systems with serious violations
Counties
176
With water systems
Population
897,337
Served by water systems
Water Systems
712
Total water systems
Violators
10
Systems with serious violations
Searching by your address yields the most accurate results. Searching by town or water system may not show all systems due to how the EPA categorizes data. Some towns may be listed under counties, and water system boundaries don't always align with town boundaries.
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New Hampshire Counties
Albany
Population: 248
Water Systems: 2
Alexandria
Population: 307
Water Systems: 1
Allenstown
Population: 1,426
Water Systems: 3
Alstead
Population: 84
Water Systems: 2
Alton
Population: 2,288
Water Systems: 4
Amherst
Population: 512
Water Systems: 4
Andover
Population: 650
Water Systems: 1
Antrim
Population: 920
Water Systems: 1
Ashland
Population: 2,048
Water Systems: 3
Atkinson
Population: 507
Water Systems: 5
Auburn
Population: 25
Water Systems: 1
Barnstead
Population: 2,265
Water Systems: 1
Barrington
Population: 1,453
Water Systems: 14
Bartlett
Population: 7,618
Water Systems: 24
Bath
Population: 136
Water Systems: 1
Bedford
Population: 5,141
Water Systems: 4
Belmont
Population: 4,058
Water Systems: 15
Bennington
Population: 1,067
Water Systems: 4
Benton
Population: 230
Water Systems: 1
Berlin
Population: 9,575
Water Systems: 1
Bethlehem
Population: 1,750
Water Systems: 1
Boscawen
Population: 3,800
Water Systems: 1
Bow
Population: 808
Water Systems: 7
Bradford
Population: 40
Water Systems: 1
Brentwood
Population: 1,462
Water Systems: 2
Bridgewater
Population: 201
Water Systems: 3
Bristol
Population: 3,575
Water Systems: 1
Campton
Population: 2,555
Water Systems: 11
Canaan
Population: 1,123
Water Systems: 4
Candia
Population: 230
Water Systems: 3
Canterbury
Population: 25
Water Systems: 1
Carroll
Population: 1,925
Water Systems: 2
Charlestown
Population: 3,113
Water Systems: 4
Chester
Population: 578
Water Systems: 4
Chichester
Population: 26
Water Systems: 1
Claremont
Population: 9,000
Water Systems: 1
Colebrook
Population: 1,300
Water Systems: 1
Columbia
Population: 95
Water Systems: 1
Concord
Population: 44,215
Water Systems: 1
Conway
Population: 11,552
Water Systems: 24
Danville
Population: 1,291
Water Systems: 5
Deerfield
Population: 107
Water Systems: 3
Deering
Population: 290
Water Systems: 2
Derry
Population: 20,983
Water Systems: 17
Dover
Population: 29,000
Water Systems: 1
Durham
Population: 16,442
Water Systems: 4
East Kingston
Population: 438
Water Systems: 4
Effingham
Population: 266
Water Systems: 2
Enfield
Population: 2,130
Water Systems: 5
Epping
Population: 2,200
Water Systems: 7
Epsom
Population: 1,729
Water Systems: 7
Errol
Population: 183
Water Systems: 1
Exeter
Population: 13,958
Water Systems: 8
Farmington
Population: 3,250
Water Systems: 1
Fitzwilliam
Population: 193
Water Systems: 4
Francestown
Population: 245
Water Systems: 2
Franconia
Population: 1,010
Water Systems: 2
Franklin
Population: 7,000
Water Systems: 1
Freedom
Population: 975
Water Systems: 4
Fremont
Population: 407
Water Systems: 3
Gilford
Population: 4,406
Water Systems: 26
Goffstown
Population: 4,548
Water Systems: 6
Gorham
Population: 2,685
Water Systems: 2
Grantham
Population: 3,450
Water Systems: 2
Greenfield
Population: 348
Water Systems: 2
Greenville
Population: 1,645
Water Systems: 3
Hales Location
Population: 385
Water Systems: 1
Hampstead
Population: 7,063
Water Systems: 3
Hampton
Population: 19,502
Water Systems: 5
Hampton Falls
Population: 108
Water Systems: 1
Hancock
Population: 450
Water Systems: 1
Hanover
Population: 8,500
Water Systems: 1
Haverhill
Population: 4,179
Water Systems: 5
Hebron
Population: 128
Water Systems: 2
Henniker
Population: 3,091
Water Systems: 2
Hill
Population: 350
Water Systems: 1
Hillsborough
Population: 3,300
Water Systems: 2
Hinsdale
Population: 3,400
Water Systems: 2
Holderness
Population: 281
Water Systems: 2
Hollis
Population: 435
Water Systems: 5
Hooksett
Population: 8,013
Water Systems: 4
Hopkinton
Population: 2,255
Water Systems: 5
Hudson
Population: 16,978
Water Systems: 3
Jackson
Population: 755
Water Systems: 7
Jaffrey
Population: 4,200
Water Systems: 2
Keene
Population: 30,000
Water Systems: 1
Kingston
Population: 724
Water Systems: 9
Laconia
Population: 16,980
Water Systems: 5
Lancaster
Population: 2,450
Water Systems: 1
Lebanon
Population: 10,279
Water Systems: 5
Lee
Population: 654
Water Systems: 10
Lincoln
Population: 2,750
Water Systems: 1
Lisbon
Population: 1,010
Water Systems: 1
Litchfield
Population: 6,958
Water Systems: 1
Littleton
Population: 6,500
Water Systems: 1
Londonderry
Population: 9,225
Water Systems: 20
Loudon
Population: 948
Water Systems: 7
Lyme
Population: 306
Water Systems: 2
Madbury
Population: 30
Water Systems: 1
Madison
Population: 1,275
Water Systems: 3
Manchester
Population: 123,525
Water Systems: 2
Marlborough
Population: 850
Water Systems: 2
Meredith
Population: 4,632
Water Systems: 9
Merrimack
Population: 25,000
Water Systems: 1
Middleton
Population: 218
Water Systems: 1
Milan
Population: 60
Water Systems: 1
Milford
Population: 10,122
Water Systems: 5
Milton
Population: 1,242
Water Systems: 2
Monroe
Population: 300
Water Systems: 1
Mont Vernon
Population: 100
Water Systems: 1
Moultonborough
Population: 3,087
Water Systems: 12
Nashua
Population: 88,615
Water Systems: 2
New Castle
Population: 910
Water Systems: 1
New Durham
Population: 111
Water Systems: 2
New Hampton
Population: 666
Water Systems: 2
New Ipswich
Population: 206
Water Systems: 3
New London
Population: 3,083
Water Systems: 3
Newbury
Population: 259
Water Systems: 2
Newfields
Population: 550
Water Systems: 1
Newmarket
Population: 5,290
Water Systems: 3
Newport
Population: 5,043
Water Systems: 2
Newton
Population: 533
Water Systems: 4
Northfield
Population: 2,699
Water Systems: 4
Northumberland
Population: 2,715
Water Systems: 2
Northwood
Population: 996
Water Systems: 5
Nottingham
Population: 45
Water Systems: 1
Orford
Population: 128
Water Systems: 1
Ossipee
Population: 2,193
Water Systems: 8
Pelham
Population: 1,809
Water Systems: 13
Pembroke
Population: 5,265
Water Systems: 3
Peterborough
Population: 4,350
Water Systems: 1
Pittsburg
Population: 233
Water Systems: 1
Pittsfield
Population: 1,696
Water Systems: 2
Plainfield
Population: 1,034
Water Systems: 2
Plaistow
Population: 2,109
Water Systems: 20
Plymouth
Population: 7,183
Water Systems: 4
Portsmouth
Population: 42,900
Water Systems: 2
Raymond
Population: 5,199
Water Systems: 11
Rindge
Population: 407
Water Systems: 5
Rochester
Population: 25,810
Water Systems: 10
Rollinsford
Population: 1,688
Water Systems: 1
Rumney
Population: 55
Water Systems: 1
Rye
Population: 4,300
Water Systems: 1
Salem
Population: 20,996
Water Systems: 7
Sandown
Population: 1,211
Water Systems: 12
Seabrook
Population: 14,000
Water Systems: 1
Somersworth
Population: 12,000
Water Systems: 1
Stewartstown
Population: 478
Water Systems: 2
Strafford
Population: 95
Water Systems: 1
Stratford
Population: 415
Water Systems: 3
Stratham
Population: 2,043
Water Systems: 18
Sunapee
Population: 2,236
Water Systems: 3
Surry
Population: 50
Water Systems: 1
Swanzey
Population: 2,776
Water Systems: 7
Tamworth
Population: 966
Water Systems: 10
Thornton
Population: 1,201
Water Systems: 11
Tilton
Population: 1,082
Water Systems: 8
Troy
Population: 1,200
Water Systems: 1
Tuftonboro
Population: 486
Water Systems: 3
Unity
Population: 625
Water Systems: 1
Wakefield
Population: 1,695
Water Systems: 4
Walpole
Population: 1,807
Water Systems: 3
Warner
Population: 878
Water Systems: 2
Warren
Population: 243
Water Systems: 2
Waterville Valley
Population: 3,050
Water Systems: 1
Weare
Population: 599
Water Systems: 5
Webster
Population: 165
Water Systems: 2
Westmoreland
Population: 380
Water Systems: 1
Whitefield
Population: 1,640
Water Systems: 1
Wilmot
Population: 53
Water Systems: 1
Wilton
Population: 1,790
Water Systems: 1
Winchester
Population: 3,067
Water Systems: 3
Windham
Population: 2,617
Water Systems: 16
Windsor
Population: 280
Water Systems: 1
Wolfeboro
Population: 6,377
Water Systems: 5
Woodstock
Population: 3,048
Water Systems: 2