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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
NORMAN UTILITIES AUTHORITY OK1020801 Oklahoma Community 104,868
HARFORD COUNTY D.P.W. MD0120016 Maryland Community 104,567
WEST VALLEY WATER DISTRICT CA3610004 California Community 104,498
INDIANA AMERICAN WATER - S. INDIANA IN5210005 Indiana Community 104,445
MARTIN CO UTILITIES FL4431891 Florida Community 104,105
CITY OF COLLEGE STATION TX0210002 Texas Community 104,103
LACEY WATER DEPARTMENT WA5343500 Washington Community 103,755
HIGHLANDS RANCH WSD CO0118015 Colorado Community 103,444
CITY OF YUMA AZ0414024 Arizona Community 103,264
GREENVILLE UTILITIES COMM NC0474010 North Carolina Community 103,140
LONGMONT CITY OF CO0107485 Colorado Community 102,866
NORTH LITTLE ROCK WATERWORKS AR0000453 Arkansas Community 102,610
CALIFORNIA WATER SERVICE - SAN MATEO CA4110008 California Community 102,348
CITY OF WICHITA FALLS TX2430001 Texas Community 102,316
PA GAS AND WATER CO - NORT DI PA2350021 Pennsylvania Community 102,000
CTWC - NORTHERN REG-WESTERN SYSTEM CT0473011 Connecticut Community 101,313
CITY OF SAN JOSE - EVG/EDV/COY CA4310020 California Community 101,265
LYNN WATER AND SEWER COMM MA3163000 Massachusetts Community 101,253
ALBANY GA0950000 Georgia Community 101,245
CITY OF NEW BEDFORD DPI MA4201000 Massachusetts Community 101,079
WALNUT VALLEY WATER DISTRICT CA1910234 California Community 100,941
HESPERIA WD CA3610024 California Community 100,744
ST CHARLES COUNTY PWSD 2 MO6024530 Missouri Community 100,587
CLINTON TOWNSHIP MI0001480 Michigan Community 100,513
VEOLIA WATER DELAWARE, INC DE0000564 Delaware Community 100,495
NAMPA CITY OF ID3140080 Idaho Community 100,200
LONG HUNTER STATE PARK TN0002796 Tennessee Transient Non-Community 100,000
BLUEWATER LAKE STATE PARK NM3596832 New Mexico Transient Non-Community 100,000
GARDEN ST PKWY-FORKED RIVER AR NJ1545200 New Jersey Transient Non-Community 100,000
MIAMI BEACH, CITY OF FL4130901 Florida Community 100,000
SOUTH TAHOE PUD - MAIN CA0910002 California Community 100,000
CARMEL WATER DEPARTMENT IN5229004 Indiana Community 99,927
SANDY CITY WATER SYSTEM UTAH18028 Utah Community 99,750
CANTON TOWNSHIP MI0001100 Michigan Community 99,627
LEES SUMMIT PWS MO1010459 Missouri Community 99,400
CITY OF POMPANO FL4061129 Florida Community 99,400
JORDAN VALLEY WCD UTAH18027 Utah Community 99,335
DALTON UTILITIES GA3130000 Georgia Community 99,315
KENOSHA WATER UTILITY WI2300046 Wisconsin Community 99,218
SPRINGDALE WATER UTILITIES AR0000575 Arkansas Community 98,948
CITY OF SANTA BARBARA WATER DEPARTMENT CA4210010 California Community 98,872
DUBLIN SAN RAMON SERVICES DISTRICT CA0110009 California Community 98,776
WVAWC - HUNTINGTON DIST WV3300608 West Virginia Community 98,647
CITY OF LEANDER TX2460012 Texas Community 98,330
LAS CRUCES MUNICIPAL WATER SYSTEM NM3511707 New Mexico Community 98,175
PAWTUCKET WATER SUPPLY BOARD VEOLIA-NA RI1592021 Rhode Island Community 98,130
OREM CITY WATER SYSTEM UTAH25020 Utah Community 98,129
ALBANY CITY NY0100189 New York Community 98,000
PORTSMOUTH, CITY OF VA3740600 Virginia Community 97,915
SEACOAST UTILITIES AUTHORITY FL4501124 Florida Community 97,552