Water quality for ZIP code 54603
ZIP 54603 covers La Crosse, French Island, and Onalaska in La Crosse County, Wisconsin, one of 9 ZIP codes in the county. 122 active public water systems serve the county; 21 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in La Crosse County
20 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Island Estates La Crosse |
50 | 3 | 1.2 mi | |
| LA Crosse Waterworks La Crosse |
53,000 | 0 | 2.8 mi | |
| Shelby TN of SD 2 Arbor HL La Crosse |
231 | 0 | 4.3 mi | |
| Bluffview Commons La Crosse |
140 | 1 | 4.5 mi | |
| Shelby TN of Wedgewood Vly La Crosse |
1,020 | 0 | 4.8 mi | |
| Shelby TN of SD 2 Skyline La Crosse |
156 | 0 | 5.9 mi | |
| LA Crosse Estates LLC La Crosse |
351 | 0 | 6.4 mi | |
| Bostwick Valley MHP West Salem |
240 | 2 | 6.5 mi | |
| West Salem Waterworks West Salem |
5,045 | 0 | 8.2 mi | |
| Innsbruck Water Trust West Salem |
85 | 0 | 8.2 mi | |
| Coulee Manor Trailer Park La Crosse |
39 | 3 | 8.9 mi | |
| Coulee Creek Estates BV La Crosse |
300 | 0 | 9.4 mi | |
| Coulee Creek Estates GV La Crosse |
80 | 0 | 9.5 mi | |
| ST Joseph San Dist 1 La Crosse |
503 | 0 | 11.0 mi | |
| Holmen Waterworks Holmen |
10,147 | 2 | 11.0 mi | |
| Bangor Waterworks Bangor |
1,520 | 0 | 12.9 mi | |
| Town of Farmington Sanitary District Mindoro |
275 | 3 | 13.4 mi | |
| Green Oaks Mobile Home Court Holmen |
117 | 0 | 14.4 mi | |
| Rockland Waterworks Rockland |
642 | 3 | 16.6 mi | |
| Battlestone Station Condos Lacrosse |
40 | 1 | — |
Non-community systems in La Crosse County (101: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to La Crosse County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Wisconsin records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.