County · Illinois
Henry County, Illinois: drinking water records
This overview covers 16 ZIP codes and 39 community water systems in Henry County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Kewanee IL0730650 | 12,509 | 120 | 0 | 0 | 3.3 ppb |
| Geneseo IL0730500 | 6,539 | 60 | 1 | 0 | 1.4 ppb |
| Orion IL0730700 | 1,754 | 0 | 0 | 1 | 5.5 ppb |
| Atkinson IL0730200 | 955 | 0 | 0 | 1 | 2.9 ppb |
| Geneseo Hills Subdivision IL0735600 | 500 | 0 | 0 | 1 | 3.1 ppb |
| Rustic Acres Water Association IL0735500 | 260 | 0 | 0 | 1 | 0 ppb |
| Hazelwood Heights Subdivision IL0735220 | 235 | 0 | 0 | 1 | 2.4 ppb |
| Timber Brook Estates IL0735450 | 120 | 0 | 0 | 1 | 0 ppb |
| Ophiem PWS IL0735150 | 110 | 0 | 0 | 3 | 3 ppb |
| Lynwood 3rd Addition IL0735280 | 100 | 0 | 0 | 15 | 0.7 ppb |
| Geneseo Hickory Hills HOA IL0730080 | 83 | 0 | 0 | 12 | 0 ppb |
| Blackhawk College East Campus IL0730130 | 80 | 0 | 0 | 1 | 19 ppb |
| Colona West IL0730550 | 2,640 | 0 | 0 | 0 | 1.6 ppb |
| Colona East IL0730400 | 2,501 | 0 | 0 | 0 | 1.8 ppb |
| Galva IL0730450 | 2,449 | 0 | 0 | 0 | 1.6 ppb |
| Cambridge IL0730300 | 2,086 | 0 | 0 | 0 | 1.3 ppb |
| Annawan IL0730150 | 843 | 0 | 0 | 0 | 2.5 ppb |
| Woodhull IL0730750 | 771 | 0 | 0 | 0 | 1.5 ppb |
| Alpha IL0730050 | 626 | 0 | 0 | 0 | 7.6 ppb |
| Andover IL0730100 | 565 | 0 | 0 | 0 | 3.7 ppb |
| Buysse Subdivision IL0735000 | 380 | 0 | 0 | 0 | 0 ppb |
| Sunny Hill Estates Subdivision IL0735300 | 375 | 0 | 0 | 0 | 1.3 ppb |
| Colona Park LLC - Formerly Kershaw MHP IL0735345 | 250 | 0 | 0 | 0 | 0 ppb |
| Country Estates Subdivision IL0735050 | 188 | 0 | 0 | 0 | 5.6 ppb |
| Hazelwood 4th Addition IL0735350 | 140 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Henry County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 61258.
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.