Browse Water Systems
25,913 public water systems in IL.
Public Water Systems Database
Browse 25,913 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 |
|---|---|---|---|---|
| NORTHLAKE | IL0314710 | Illinois | Community | 12,840 |
| TAYLORVILLE | IL0210600 | Illinois | Community | 12,806 |
| MINOOKA | IL0630550 | Illinois | Community | 12,800 |
| JERSEY RWC | IL0835300 | Illinois | Community | 12,750 |
| HERRIN | IL1990400 | Illinois | Community | 12,747 |
| GLEN CARBON | IL1190300 | Illinois | Community | 12,618 |
| PLANO | IL0930200 | Illinois | Community | 12,600 |
| KEWANEE | IL0730650 | Illinois | Community | 12,509 |
| RICHTON PARK | IL0312550 | Illinois | Community | 12,504 |
| MARKHAM | IL0311770 | Illinois | Community | 12,500 |
| WINNETKA | IL0313330 | Illinois | Community | 12,475 |
| IL AMERICAN-CHICKASAW | IL1975320 | Illinois | Community | 12,432 |
| WARRENVILLE | IL0430833 | Illinois | Community | 12,350 |
| EFFINGHAM | IL0490250 | Illinois | Community | 12,252 |
| CENTRALIA | IL1214220 | Illinois | Community | 12,182 |
| CAPTAIN JAMES A LOVELL FHCC | IL3161232 | Illinois | Non-Transient Non-Community | 12,100 |
| IL AMERICAN-PONTIAC | IL1055030 | Illinois | Community | 11,864 |
| FOX LAKE | IL0970200 | Illinois | Community | 11,780 |
| COOK CO FERNDALE HGTS SUBD | IL0315550 | Illinois | Community | 11,724 |
| RIVER FOREST | IL0312610 | Illinois | Community | 11,717 |
| SCHILLER PARK | IL0312850 | Illinois | Community | 11,709 |
| WASHINGTON COUNTY WATER COMPANY | IL1895600 | Illinois | Community | 11,374 |
| LAKE OF EGYPT PWD | IL1995200 | Illinois | Community | 11,368 |
| ROBINSON-PALESTINE WATER COMMISSION | IL0335030 | Illinois | Community | 11,331 |
| SUGAR GROVE | IL0890850 | Illinois | Community | 11,243 |
| SHO-DEEN SBDV | IL0890060 | Illinois | Community | 11,200 |
| BURR RIDGE | IL0434190 | Illinois | Community | 11,192 |
| IL AMERICAN-CHICAGO SUBURBAN | IL0315150 | Illinois | Community | 11,187 |
| COLUMBIA | IL1330050 | Illinois | Community | 11,129 |
| COMMONFIELDS OF CAHOKIA PWD | IL1635030 | Illinois | Community | 11,030 |
| WORTH | IL0313360 | Illinois | Community | 10,970 |
| FRANKFORT E HICKORY CRK BASIN | IL1977530 | Illinois | Community | 10,900 |
| SUMMIT | IL0310060 | Illinois | Community | 10,875 |
| CRESTWOOD | IL0310600 | Illinois | Community | 10,826 |
| HEBRON PWD | IL0335150 | Illinois | Community | 10,800 |
| HIGHLAND | IL1190550 | Illinois | Community | 10,649 |
| WOOD RIVER | IL1191150 | Illinois | Community | 10,464 |
| PINGREE GROVE | IL0890160 | Illinois | Community | 10,365 |
| MANHATTAN | IL1970550 | Illinois | Community | 10,340 |
| BARRINGTON | IL0974080 | Illinois | Community | 10,327 |
| LYONS | IL0311710 | Illinois | Community | 10,304 |
| PERU | IL0990850 | Illinois | Community | 10,300 |
| RIVER GROVE | IL0312640 | Illinois | Community | 10,282 |
| RIVERDALE | IL0312580 | Illinois | Community | 10,266 |
| MURPHYSBORO | IL0770500 | Illinois | Community | 10,241 |
| WATERLOO | IL1330300 | Illinois | Community | 10,190 |
| MARYVILLE | IL1190750 | Illinois | Community | 10,150 |
| OSF ST FRANCIS HOSPITAL | IL3164020 | Illinois | Non-Transient Non-Community | 10,000 |
| ADVOCATE CHRIST MEDICAL CENTER | IL3162461 | Illinois | Non-Transient Non-Community | 10,000 |
| CHGO ZOOLOGICAL PARK | IL3076638 | Illinois | Transient Non-Community | 10,000 |