County · Louisiana
Winn Parish, Louisiana: drinking water records
This overview covers 7 ZIP codes and 12 community water systems in Winn Parish. 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 |
|---|---|---|---|---|---|
| City of Winnfield Water System LA1127012 | 7,194 | 60 | 0 | 11 | 1 ppb |
| West Winn Water System INC LA1127011 | 1,965 | 0 | 0 | 63 | 4.6 ppb |
| Tannehill Water System LA1127017 | 1,932 | 0 | 0 | 36 | 3 ppb |
| Village of Atlanta Water Supply LA1127001 | 900 | 0 | 0 | 35 | 0 ppb |
| Pleasant Hills-Crossroads Water Systems LA1127023 | 840 | 0 | 0 | 57 | 1.4 ppb |
| Backwood Village Water System LA1127022 | 783 | 0 | 0 | 42 | 1 ppb |
| Village of Dodson Water System LA1127005 | 714 | 0 | 0 | 1 | 1 ppb |
| Hudson Gaars Mill Water System LA1127015 | 660 | 0 | 0 | 42 | 1 ppb |
| Village of Sikes Water System LA1127010 | 639 | 0 | 0 | 62 | 0 ppb |
| Village of Calvin Water System LA1127002 | 591 | 0 | 0 | 54 | 2 ppb |
| Joyce Water Supply LA1127008 | 474 | 0 | 0 | 29 | 0.7 ppb |
| Wheeling Water System INC LA1127019 | 381 | 0 | 0 | 6 | 0 ppb |
ZIP reports in Winn Parish
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.