County · Wisconsin
La Crosse County, Wisconsin: drinking water records
This overview covers 9 ZIP codes and 19 community water systems in La Crosse 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 |
|---|---|---|---|---|---|
| Holmen Waterworks WI6320306 | 10,147 | 210 | 1 | 1 | 2.8 ppb |
| La Crosse Waterworks WI6320309 | 53,000 | 600 | 7 | 0 | 10.9 ppb |
| Onalaska Waterworks WI6320327 | 18,000 | 240 | 1 | 0 | 0 ppb |
| West Salem Waterworks WI6320334 | 5,045 | 180 | 0 | 0 | 1.3 ppb |
| Rockland Waterworks WI6320333 | 642 | 0 | 0 | 1 | 1.5 ppb |
| Town of Farmington Sanitary District WI6320326 | 275 | 0 | 0 | 6 | 0 ppb |
| Shelby Tn of Sd 2 Skyline WI6320310 | 156 | 0 | 0 | 1 | 6.1 ppb |
| Island Estates WI6320638 | 50 | 0 | 0 | 1 | 0 ppb |
| Bangor Waterworks WI6320233 | 1,520 | 0 | 0 | 0 | 1.3 ppb |
| Shelby Tn of Wedgewood Vly WI6320311 | 1,020 | 0 | 0 | 0 | 1.1 ppb |
| St Joseph San Dist 1 WI6320318 | 503 | 0 | 0 | 0 | 3.4 ppb |
| La Crosse Estates LLC WI6320319 | 351 | 0 | 0 | 0 | 0.8 ppb |
| Bostwick Valley MHP WI6320336 | 240 | 0 | 0 | 0 | 2.3 ppb |
| Shelby Tn of Sd 2 Arbor Hl WI6320323 | 231 | 0 | 0 | 0 | 0 ppb |
| Bluffview Commons WI6320315 | 140 | 0 | 0 | 0 | 0 ppb |
| Green Oaks Mobile Home Court WI6320308 | 117 | 0 | 0 | 0 | 0 ppb |
| Innsbruck Water Trust WI6320314 | 85 | 0 | 0 | 0 | 1.5 ppb |
| Battlestone Station Condos WI6321133 | 40 | 0 | 0 | 0 | 0 ppb |
| Coulee Manor Trailer Park WI6320307 | 39 | 0 | 0 | 0 | 9.1 ppb |
ZIP reports in La Crosse 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.