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Infrastructure
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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
SANTA MONICA-CITY, WATER DIVISION CA1910146 California Community 89,947
CLEAR LAKE CITY WATER AUTHORITY TX1010056 Texas Community 89,702
CITY OF REDDING CA4510005 California Community 89,628
PLACER CWA - FOOTHILL CA3110025 California Community 89,544
NORTH MIAMI, CITY OF FL4130977 Florida Community 89,349
MO AMERICAN ST JOSEPH MO1010714 Missouri Community 89,171
PENNICHUCK WATER WORKS NH1621010 New Hampshire Community 89,073
PA AMERICAN NORRISTOWN PA1460046 Pennsylvania Community 88,885
LAWRENCE WATER WORKS MA3149000 Massachusetts Community 88,877
KENT COUNTY WATER AUTHORITY RI1559511 Rhode Island Community 88,779
MARYSVILLE UTILITIES WA5351900 Washington Community 88,589
NEWTON WATER DEPT. (MWRA) MA3207000 Massachusetts Community 88,415
BEAVERTON, CITY OF OR4100081 Oregon Community 88,045
CITY OF BRYAN TX0210001 Texas Community 87,816
WINTER HAVEN WATER DEPARTMENT FL6531992 Florida Community 87,537
DAYTONA BEACH, CITY OF FL3640275 Florida Community 87,534
EPCOR - SAN TAN AZ0411128 Arizona Community 87,435
SOUTH JORDAN CITY UTAH18023 Utah Community 87,356
OGDEN CITY WATER SYSTEM UTAH29011 Utah Community 87,267
SJWD MIDDLE TYGER WTP (4220006) SC4220006 South Carolina Community 87,259
ROCKDALE CO. WATER SYSTEM GA2470000 Georgia Community 87,156
WAUKEGAN IL0971900 Illinois Community 87,149
WEST WILSON UTILITY DISTRICT TN0000743 Tennessee Community 86,978
CITY OF CEDAR PARK TX2460009 Texas Community 86,939
FAYETTE COUNTY GA1130001 Georgia Community 86,934
BRICK TOWNSHIP MUA NJ1506001 New Jersey Community 86,898
Duluth MN1690011 Minnesota Community 86,859
INDIANA AMERICAN WATER - JOHNSON COUNTY IN5241005 Indiana Community 86,813
OLIVENHAIN MWD CA3710029 California Community 86,458
CHINO, CITY OF CA3610012 California Community 86,435
AQUA WSC TX0110013 Texas Community 86,325
ORANGE WATER & SEWER AUTHORITY NC0368010 North Carolina Community 86,300
FORT SMITH WATER UTILITIES AR0000507 Arkansas Community 86,209
BESSEMER WATER SERVICE AL0000737 Alabama Community 86,091
WESTERN MWD CA3310049 California Community 86,062
CITY OF BAYTOWN TX1010003 Texas Community 86,004
FKAA J. ROBERT DEAN W.T.P. FL4134357 Florida Community 86,000
HARLINGEN WATER WORKS SYSTEM TX0310002 Texas Community 85,900
TROY MI0006690 Michigan Community 85,854
SIOUX CITY WATER SUPPLY IA9778054 Iowa Community 85,791
LATHAM WATER DISTRICT NY0100198 New York Community 85,590
PLANTATION, EAST ; CENTRAL FL4061121 Florida Community 85,496
CITY OF EDINBURG TX1080004 Texas Community 85,224
SILK OAK WATER SYSTEM % J MORA FL3484058 Florida Community 85,000
MANTECA, CITY OF CA3910005 California Community 84,928
NAPA, CITY OF CA2810003 California Community 84,804
INDIO WATER AUTHORITY CA3310020 California Community 84,757
COLUMBIA POWER AND WATER SYSTEMS TN0000128 Tennessee Community 84,617
GOLETA WATER DISTRICT CA4210004 California Community 84,462
HALLSDALE-POWELL U.D. TN0000280 Tennessee Community 84,315