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Employer directory · Maine

Public water systems in Maine

31 public water systems in Maine, 42nd among the states. Community drinking-water systems owned by a local, state or federal government and serving 3,301 people or more, from EPA's Safe Drinking Water Information System. Private and tribal systems are not included.

Public water systemPopulation served
PORTLAND WATER DISTRICT-GREATER135,068
KENNEBUNK, KENNEBUNKPORT & WELLS WD35,663
BANGOR WATER DISTRICT27,298
LEWISTON WATER & SEWER DIVISION23,720
KENNEBEC WATER DISTRICT22,060
BRUNSWICK/TOPSHAM WATER DISTRICT18,863
AUBURN WATER DISTRICT17,245
KITTERY WATER DISTRICT14,478
SANFORD WATER DISTRICT14,328
GREATER AUGUSTA UTILITY DISTRICT13,750
YORK WATER DISTRICT13,675
BATH WATER DISTRICT9,205
GARDINER WATER DISTRICT9,000
BREWER WATER DEPARTMENT8,860
BOOTHBAY REGION WATER DISTRICT8,448
YARMOUTH WATER DISTRICT8,000
OLD TOWN WATER DISTRICT7,648
LISBON WATER DEPARTMENT6,643
PRESQUE ISLE UTILITIES DISTRICT6,128
ORONO-VEAZIE WATER DISTRICT5,793
BELFAST WATER DISTRICT5,698
ANSON AND MADISON WATER DISTRICT5,568
HOULTON WATER COMPANY4,735
HAMPDEN WATER DISTRICT4,628
TOWN OF BAR HARBOR- WATER DIVISION4,443
FARMINGTON VILLAGE CORP WATER DEPT4,050
RUMFORD WATER DISTRICT4,050
CARIBOU UTILITIES DISTRICT3,943
ELLSWORTH WATER DEPARTMENT3,910
SOUTH BERWICK WATER DISTRICT3,722
BRIDGTON WATER DISTRICT3,660

Largest first by population served, as each employer reports it to its federal registry.

Source: U.S. Environmental Protection Agency, Safe Drinking Water Information System (SDWIS/Fed), community water systems. Data captured October 2, 2026.

Jobs at public water systems

Water / Wastewater Treatment Operator

More public employers

Other employers in Maine

Fire departmentsTransit agenciesSchool districtsPolice departmentsSheriff's officesCampus police departmentsCommunity collegesPublic universitiesPublic librariesPublic power utilities

Public water systems in other states

Texas · 1,133California · 523Illinois · 408Alabama · 294Florida · 286Michigan · 284Tennessee · 276New York · 266Pennsylvania · 259Massachusetts · 254Ohio · 243Georgia · 242North Carolina · 237Washington · 211New Jersey · 205Missouri · 200Kentucky · 190Louisiana · 190Minnesota · 185Wisconsin · 185Indiana · 176Colorado · 167Arkansas · 157South Carolina · 143Oklahoma · 142Virginia · 142Utah · 116Iowa · 112Oregon · 111Mississippi · 107Kansas · 88West Virginia · 82Maryland · 69Arizona · 63New Mexico · 53Idaho · 43Nebraska · 43New Hampshire · 38Hawaii · 34Montana · 32Vermont · 32South Dakota · 31Connecticut · 30Nevada · 28Wyoming · 28Rhode Island · 26Delaware · 20North Dakota · 18Alaska · 16District of Columbia · 3

All public water systems in the U.S. · Maine government jobs