County · Illinois
Marion County, Illinois: drinking water records
This overview covers 10 ZIP codes and 15 community water systems in Marion 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 |
|---|---|---|---|---|---|
| Centralia IL1214220 | 12,182 | 120 | 0 | 0 | 3.3 ppb |
| Salem IL1210450 | 7,905 | 120 | 0 | 0 | 1.3 ppb |
| Raccoon Water Company IL1215100 | 7,080 | 360 | 0 | 0 | 0 ppb |
| North East Marion County Water Cmpny IL1210030 | 3,220 | 120 | 0 | 0 | 0 ppb |
| Kinmundy IL1210300 | 940 | 120 | 0 | 0 | 0 ppb |
| Alma IL1210050 | 336 | 0 | 0 | 1 | 0 ppb |
| Fmc Water Company IL1210020 | 2,945 | 0 | 0 | 0 | 0 ppb |
| Odin IL1210350 | 2,543 | 0 | 0 | 0 | 0 ppb |
| Sandoval IL1210500 | 1,422 | 0 | 0 | 0 | 10 ppb |
| Walnut Hill IL1210600 | 1,180 | 0 | 0 | 0 | 0 ppb |
| Wamac IL1214920 | 1,030 | 0 | 0 | 0 | 3.1 ppb |
| Patoka IL1210400 | 545 | 0 | 0 | 0 | 0 ppb |
| Iuka IL1210150 | 512 | 0 | 0 | 0 | 0 ppb |
| Junction City IL1210200 | 494 | 0 | 0 | 0 | 0 ppb |
| W G Murray Development Center IL1215510 | 290 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Marion 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.