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Employer directory · Rhode Island

Public water systems in Rhode Island

26 public water systems in Rhode Island, 47th 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
PROVIDENCE-CITY OF333,142
PAWTUCKET WATER SUPPLY BOARD VEOLIA-NA98,130
KENT COUNTY WATER AUTHORITY94,107
WARWICK-CITY OF73,289
BRISTOL COUNTY WATER AUTHORITY49,000
EAST PROVIDENCE-CITY OF47,618
WOONSOCKET WATER DIVISION45,828
NEWPORT-CITY OF42,155
WESTERLY WATER DEPARTMENT35,298
NORTH KINGSTOWN TOWN OF27,732
LINCOLN WATER COMMISSION21,664
CUMBERLAND, TOWN OF21,235
UNIVERSITY OF RHODE ISLAND19,354
PORTSMOUTH WATER & FIRE DISTRICT17,090
BLOCK ISLAND WATER COMPANY9,999
GREENVILLE WATER DISTRICT9,500
SMITHFIELD WATER SUPPLY BOARD9,460
NORTH TIVERTON FIRE DISTRICT8,969
NARRAGANSETT WATER SYSTEM-POINT JUDITH8,210
NAVAL STATION, NEWPORT7,870
SOUTH KINGSTOWN-SOUTH SHORE6,170
CLEAR RIVER ELECTRIC AND WATER DISTRICT6,000
NARRAGANSETT WATER DEPT-NORTH END4,432
KINGSTON WATER DISTRICT3,968
SLATERSVILLE PUBLIC SUPPLY3,403
JAMESTOWN WATER DEPARTMENT3,348

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 Rhode Island

Fire departmentsTransit agenciesSchool districtsPolice departmentsCampus 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 · 32Maine · 31South Dakota · 31Connecticut · 30Nevada · 28Wyoming · 28Delaware · 20North Dakota · 18Alaska · 16District of Columbia · 3

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