Browse Water Systems

25,185 public water systems in IL.

Public Water Systems Database

Browse 25,185 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.

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System Name PWSID State Type Population Served
LITTLE GALLILEE CHURCH CAMP IL0044784 Illinois Transient Non-Community 10,000
CHGO ZOOLOGICAL PARK IL3076638 Illinois Transient Non-Community 10,000
LEYDEN TWSP WATER DISTRICT IL0315880 Illinois Community 10,000
GTE AUTOMATIC ELECTRIC CO IL0076885 Illinois Transient Non-Community 10,000
CHGO ZOOLOGICAL PARK IL0076638 Illinois Transient Non-Community 10,000
BEL-MAR COUNTRY CLUB IL0004069 Illinois Transient Non-Community 10,000
ST OF ILL NORTHEASTERN IL UNIV IL0317820 Illinois Community 10,000
ADVOCATE CHRIST MEDICAL CENTER IL3162461 Illinois Non-Transient Non-Community 10,000
SAUK IL0312790 Illinois Community 9,921
WINFIELD IL0431150 Illinois Community 9,835
STEGER IL0314860 Illinois Community 9,700
LA SALLE IL0990300 Illinois Community 9,700
CLARK-EDGAR RWD IL0230010 Illinois Community 9,657
ITASCA IL0430500 Illinois Community 9,506
PILOT TRAVEL CENTER IL3114082 Illinois Transient Non-Community 9,500
HARVARD IL1110250 Illinois Community 9,469
ROCHELLE IL1410500 Illinois Community 9,446
OAK BROOK IL0430700 Illinois Community 9,400
FLOSSMOOR IL0310870 Illinois Community 9,371
RIVERSIDE IL0312670 Illinois Community 9,298
BOLINGBROOK SYSTEM 2 IL1974152 Illinois Community 9,160
LYNWOOD IL0311680 Illinois Community 9,149
PARIS IL0450300 Illinois Community 9,100
HARWOOD HEIGHTS IL0311140 Illinois Community 9,065
WILLOWBROOK IL0431100 Illinois Community 9,000
GLENWOOD IL0311050 Illinois Community 8,956
MONMOUTH IL1870150 Illinois Community 8,902
OLNEY IL1590200 Illinois Community 8,877
GLENCOE IL0310990 Illinois Community 8,849
LOYOLA UNIV MED CNTR IL0310160 Illinois Community 8,800
MASCOUTAH IL1630800 Illinois Community 8,759
BEACH PARK IL0970190 Illinois Community 8,710
CLARENDON HILLS IL0430250 Illinois Community 8,702
WEST FRANKFORT IL0550700 Illinois Community 8,650
ROCK FALLS IL1950450 Illinois Community 8,620
HARRISBURG IL1650200 Illinois Community 8,524
ABBOTT LABORATORIES IL3130252 Illinois Non-Transient Non-Community 8,500
CALUMET PARK IL0310420 Illinois Community 8,442
IL AMERICAN-JERSEYVILLE IL0830250 Illinois Community 8,412
CHESTER IL1570100 Illinois Community 8,407
GILBERTS IL0890400 Illinois Community 8,366
GREENVILLE IL0050050 Illinois Community 8,310
CRETE IL1970300 Illinois Community 8,275
HILLSIDE IL0311230 Illinois Community 8,200
BENTON IL0550050 Illinois Community 8,104
ISLAND LAKE IL0974540 Illinois Community 8,066
WESTERN ILLINOIS UNIVERSITY IL1095510 Illinois Community 8,000
PARADISE PARK IL0091819 Illinois Transient Non-Community 8,000
MILL CREEK WATER RECLAMATION DISTRICT IL0890120 Illinois Community 8,000
POPLAR CREEK MUSIC THEATRE IL3120741 Illinois Transient Non-Community 8,000