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.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| POSEN | IL0312520 | Illinois | Community | 5,331 |
| SANGAMON VALLEY PWD | IL0195150 | Illinois | Community | 5,300 |
| GENOA | IL0370150 | Illinois | Community | 5,298 |
| MITCHELL PWD | IL1195210 | Illinois | Community | 5,253 |
| FLORA | IL0250100 | Illinois | Community | 5,233 |
| EUREKA | IL2030200 | Illinois | Community | 5,216 |
| BERKELEY | IL0310180 | Illinois | Community | 5,214 |
| MONEE | IL1970650 | Illinois | Community | 5,148 |
| CATERPILLAR TRAIL PWD | IL2035030 | Illinois | Community | 5,125 |
| AQUA ILLINOIS-WILLOWBROOK | IL1977870 | Illinois | Community | 5,100 |
| BRIGHTON | IL1174160 | Illinois | Community | 5,041 |
| OTTER CREEK WATER RECLAIMATION DISTRICT | IL0890090 | Illinois | Community | 5,025 |
| NIABI ZOO | IL3001099 | Illinois | Transient Non-Community | 5,000 |
| U OF I CHICAGO MEDICAL CENTER | IL3155606 | Illinois | Non-Transient Non-Community | 5,000 |
| MIDWEST WATER CO | IL3081091 | Illinois | Transient Non-Community | 5,000 |
| RAIL-GOLF COURSE | IL0061515 | Illinois | Transient Non-Community | 5,000 |
| FERNDALE HEIGHTS UTILITY CO | IL3067371 | Illinois | Transient Non-Community | 5,000 |
| LIESURE LAKE | IL0035105 | Illinois | Transient Non-Community | 5,000 |
| MIDWEST WATER CO | IL0081091 | Illinois | Transient Non-Community | 5,000 |
| ARA FORD B | IL0080952 | Illinois | Transient Non-Community | 5,000 |
| ARA FORD A | IL0080945 | Illinois | Transient Non-Community | 5,000 |
| HAMILTON LAKES | IL3122721 | Illinois | Non-Transient Non-Community | 5,000 |
| LINCOLN VILLAGE MALL | IL3052837 | Illinois | Transient Non-Community | 5,000 |
| FERNDALE HEIGHTS UTILITY CO | IL0067371 | Illinois | Transient Non-Community | 5,000 |
| LINCOLN VILLAGE MALL | IL0052837 | Illinois | Transient Non-Community | 5,000 |
| LIESURE LAKE | IL0097972 | Illinois | Transient Non-Community | 5,000 |
| ST OF ILL UOFI MED CENTER CAMP | IL0317710 | Illinois | Community | 5,000 |
| BRADLEY | IL0910200 | Illinois | Community | 4,989 |
| SOUTH HIGHWAY PWD | IL0775400 | Illinois | Community | 4,972 |
| MURDALE PWD | IL0775200 | Illinois | Community | 4,963 |
| MILAN | IL1610400 | Illinois | Community | 4,945 |
| CREVE COEUR | IL1790100 | Illinois | Community | 4,934 |
| OLYMPIA FIELDS | IL0312280 | Illinois | Community | 4,922 |
| ANNA | IL1810050 | Illinois | Community | 4,910 |
| ROUND LAKE PARK | IL0971600 | Illinois | Community | 4,900 |
| TUSCOLA | IL0415030 | Illinois | Community | 4,875 |
| PALOS PARK | IL0311000 | Illinois | Community | 4,873 |
| WEST PRAIRIE WATER COMPANY | IL0410030 | Illinois | Community | 4,800 |
| BREESE | IL0270250 | Illinois | Community | 4,772 |
| PRAIRIE PATH WATER COMPANY-LAKE HOLIDAY | IL0995200 | Illinois | Community | 4,750 |
| CHERRY VALLEY | IL2010050 | Illinois | Community | 4,731 |
| SULLIVAN | IL1390300 | Illinois | Community | 4,729 |
| PETERSBURG | IL1290200 | Illinois | Community | 4,725 |
| ELDORADO | IL1655030 | Illinois | Community | 4,715 |
| LEBANON | IL1630650 | Illinois | Community | 4,714 |
| BEECHER | IL1970050 | Illinois | Community | 4,713 |
| FREEBURG | IL1630600 | Illinois | Community | 4,707 |
| FOX RIVER GROVE | IL1110200 | Illinois | Community | 4,702 |
| PITTSFIELD | IL1490750 | Illinois | Community | 4,697 |
| DUPO | IL1630350 | Illinois | Community | 4,684 |