Public Water Systems
5,117 active public water systems in IL, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| IL American-Waycinden | Godfrey, IL | 1,934 | 3 | - |
| Glen Ellyn Heights Subdivision | Darien, IL | 1,931 | 15 | - |
| Steeple Run Sbdv | Darien, IL | 1,931 | 10 | - |
| Belle Rive | Belle Rive, IL | 1,930 | 36 | - |
| Lexington | Lexington, IL | 1,930 | 24 | - |
| Steeleville | Steeleville, IL | 1,930 | 372 | - |
| Minonk | Minonk, IL | 1,928 | 151 | - |
| Marissa | Freeburg, IL | 1,921 | 56 | - |
| DE Soto | Desoto, IL | 1,910 | 38 | - |
| Waltonville | Mt. Vernon, IL | 1,901 | 21 | - |
| Princeville | Princeville, IL | 1,901 | 155 | - |
| South Roxana | South Roxana, IL | 1,891 | 39 | - |
| Aqua Illinois-Oak Run | Kankakee, IL | 1,885 | 26 | - |
| Girard | Girard, IL | 1,885 | 52 | - |
| Central Macoupin County RWD | Carlinville, IL | 1,883 | 160 | - |
| Bluford | Bluford, IL | 1,880 | 58 | - |
| Lacon | Lacon, IL | 1,878 | 15 | - |
| Poplar Grove South | Poplar Grove, IL | 1,877 | 23 | - |
| Rural Wabash County Water District | Lancaster, IL | 1,877 | 6 | - |
| Hampton | Hampton, IL | 1,863 | 93 | - |
| Prairie Dupont Pwd | East Carondelet, IL | 1,863 | 35 | - |
| Aqua Illinois-McHenry Shores | Kankakee, IL | 1,862 | 265 | - |
| Carlyle North Water Company, Inc. | Carlyle, IL | 1,850 | 85 | - |
| Hudson | Hudson, IL | 1,847 | 88 | - |
| DE Pue | Depue, IL | 1,838 | 199 | - |
| St Jacob | St. Jacob, IL | 1,835 | 73 | - |
| IL American-Cairo | Godfrey, IL | 1,821 | 10 | - |
| Carlyle Southwest Pwd | Centralia, IL | 1,815 | 24 | - |
| Ford Heights | Ford Heights, IL | 1,813 | 577 | - |
| Bloomington Township Pwd West Phase | Bloomington, IL | 1,800 | 17 | - |
| Kaneland High School | Waterman, IL | 1,800 | 489 | - |
| Jonesboro | Jonesboro, IL | 1,799 | 20 | - |
| Gilman | Gilman, IL | 1,793 | 38 | - |
| Somonauk | Somonauk, IL | 1,786 | 8 | - |
| Chenoa | Chenoa, IL | 1,785 | 127 | - |
| Moweaqua | Moweaqua, IL | 1,785 | 5 | - |
| Meadowbrook Pwd | Bethalto, IL | 1,778 | 8 | - |
| Zeigler | Zeigler, IL | 1,774 | 88 | - |
| Grantfork | Highland, IL | 1,766 | 84 | - |
| Central Alexander Cnty Pwd | Olive Branch, IL | 1,763 | 28 | - |
| Aqua Illinois-Rockwell | Kankakee, IL | 1,762 | 71 | - |
| Bunker Hill | Bunker Hill, IL | 1,760 | 10 | - |
| Orion | Orion, IL | 1,754 | 21 | - |
| Roodhouse | Roodhouse, IL | 1,753 | 20 | - |
| Delavan | Delavan, IL | 1,743 | 26 | - |
| Stockton | Stockton, IL | 1,728 | 72 | - |
| Cambria | Cambria, IL | 1,727 | 18 | - |
| Crainville | Crainville, IL | 1,711 | 57 | - |
| Pierron | Pierron, IL | 1,709 | 70 | - |
| Maroa | Maroa, IL | 1,700 | 55 | - |