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Browse Water Systems

433,347 public water systems.

Public Water Systems Database

Browse 433,347 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

System Name PWSID State Type Population Served
WALDORF - CHARLES COUNTY DPW MD0080049 Maryland Community 84,296
YORBA LINDA WATER DISTRICT CA3010037 California Community 84,292
WESTLAND MI0007040 Michigan Community 84,094
GW SANTA CRUZ WATER CO AZ0411131 Arizona Community 84,000
WARNER ROBINS GA1530007 Georgia Community 83,705
CITY OF LONGVIEW TX0920004 Texas Community 83,236
MONTGOMERY COUNTY WATER SERVICES 2 PWS OH5701503 Ohio Community 83,033
AVONDALE CITY OF AZ0407088 Arizona Community 83,001
CITY OF BLOOMINGTON UTILITIES IN5253002 Indiana Community 83,000
CICERO IL0310510 Illinois Community 83,000
WINTER PARK, CITY OF (3 WPS) FL3481482 Florida Community 82,984
ROCK HILL CITY OF (SC4610002) SC4610002 South Carolina Community 82,846
ST. CLOUD, CITY OF (3 WPS) FL3491373 Florida Community 82,752
Woodbury MN1820025 Minnesota Community 82,643
APEX, TOWN OF NC0392045 North Carolina Community 82,029
LAYTON CITY WATER SYSTEM UTAH06018 Utah Community 82,000
CENTRAL UTAH WCD UT4902178 Utah Transient Non-Community 82,000
NAPLES WATER DEPT FL5110198 Florida Community 82,000
CITY OF BUENA PARK CA3010003 California Community 81,998
CITY OF MILPITAS CA4310005 California Community 81,773
SOUTH HUNTINGTON WATER DISTRICT NY5103263 New York Community 81,760
SUMMERVILLE CPW (SC1810003) SC1810003 South Carolina Community 81,750
LAFOURCHE WATER DISTRICT 1 LA1057001 Louisiana Community 81,609
CITY OF MOUNTAIN VIEW CA4310007 California Community 81,501
ROGERS WATER UTILITIES AR0000055 Arkansas Community 81,443
REHOBOTH PUMP DISTRICT (TUI) DE0000991 Delaware Community 81,417
CONSOLIDATED MUTUAL MAPLE GROVE CO0130020 Colorado Community 81,400
FLINT, CITY OF MI0002310 Michigan Community 81,252
MADISON SUBURBAN U.D. TN0000424 Tennessee Community 81,203
BIG BEAR ADMINISTRATION CA3601150 California Non-Transient Non-Community 81,075
SOMERVILLE WATER DEPT. (MWRA) MA3274000 Massachusetts Community 81,045
Plymouth MN1270044 Minnesota Community 81,026
DELTONA WATER FL3640287 Florida Community 81,006
LYNCHBURG, CITY OF VA5680200 Virginia Community 80,995
FOLSOM, CITY OF - MAIN CA3410014 California Community 80,969
INGLEWOOD- CITY, WATER DEPT. CA1910051 California Community 80,824
RIO BLANCO,VIEQUES,CULEDRA PR0005386 PR Community 80,759
OCUD/SOUTHERN WATER SYS (5 WPS) FL3484119 Florida Community 80,738
OKALOOSA CO.WTR.; SWR.SYSTEM FL1460506 Florida Community 80,295
ECWA AMHERST NY1400399 New York Community 80,228
CITY OF HOUSTON UD 5 - KINGWOOD TX1010348 Texas Community 80,073
TOWN OF FLOWER MOUND TX0610023 Texas Community 80,000
AQUA ILLINOIS-KANKAKEE IL0915030 Illinois Community 80,000
HOMESTEAD, CITY OF FL4130645 Florida Community 80,000
LEHI CITY UTAH25015 Utah Community 79,978
JONESBORO WATER SYSTEM AR0000124 Arkansas Community 79,889
CITY OF ALHAMBRA CA1910001 California Community 79,776
FLORENCE CITY OF (SC2110001) SC2110001 South Carolina Community 79,745
CITY OF PHARR TX1080009 Texas Community 79,715
SANFORD, CITY OF (2 WPS) FL3590205 Florida Community 79,715