County · Illinois
Shelby County, Illinois: drinking water records
This overview covers 13 ZIP codes and 9 community water systems in Shelby County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Shelbyville IL1730300 | 5,600 | 60 | 0 | 0 | 2.1 ppb |
| Windsor IL1730550 | 1,200 | 0 | 0 | 1 | 7.8 ppb |
| Findlay IL1730100 | 750 | 0 | 0 | 1 | 0 ppb |
| Herrick IL1730150 | 358 | 0 | 0 | 1 | 3.1 ppb |
| Moweaqua IL1730200 | 1,785 | 0 | 0 | 0 | 2 ppb |
| Stewardson IL1730400 | 734 | 0 | 0 | 0 | 0 ppb |
| Cowden IL1730050 | 612 | 0 | 0 | 0 | 5.6 ppb |
| Tower Hill IL1730500 | 500 | 0 | 0 | 0 | 0 ppb |
| Sigel IL1730350 | 386 | 0 | 0 | 0 | 0.6 ppb |
ZIP reports in Shelby County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.