Water quality for ZIP code 53955
ZIP 53955 covers Lake Wisconsin, Poynette, and Dekorra in Columbia County, Wisconsin, one of 13 ZIP codes in the county. 139 active public water systems serve the county; 31 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 Columbia County
25 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Poynette Mobile Estates Poynette |
150 | 4 | 1.6 mi | |
| Inch Heights LLC Poynette |
47 | 0 | 2.0 mi | |
| Arlington Waterworks Arlington |
946 | 3 | 5.0 mi | |
| Capital Hill Mobile Home Park Poynette |
36 | 0 | 5.3 mi | |
| Harmony Mobile Manor Lodi |
45 | 0 | 5.4 mi | |
| Suburban Heights MHP Portage |
90 | 0 | 6.7 mi | |
| Harmony Grove San Dist Lodi |
1,950 | 0 | 7.2 mi | |
| Wyocena Waterworks Wyocena |
768 | 1 | 7.2 mi | |
| Lodi Waterworks Lodi |
3,146 | 3 | 8.5 mi | |
| Rio Waterworks Rio |
1,095 | 3 | 9.3 mi | |
| Saddle Ridge Estates Portage |
700 | 2 | 9.9 mi | |
| Portage Waterworks Portage |
10,437 | 0 | 10.4 mi | |
| Pardeeville Waterworks Pardeeville |
2,151 | 0 | 10.9 mi | |
| Oakwood Terrace Portage |
100 | 0 | 11.9 mi | |
| Crystal Lake RV Resort LLC Lodi |
725 | 0 | 13.4 mi | |
| Pine Haven Estates Doylestown |
45 | 2 | 13.5 mi | |
| Pine Vista MHP 1 Prairie Du Sac |
60 | 0 | 16.7 mi | |
| Cambria Waterworks Cambria |
767 | 1 | 18.0 mi | |
| Fall River Waterworks Fall River |
1,793 | 2 | 18.8 mi | |
| Dells Estates Wisconsin Dells |
30 | 3 | 19.1 mi | |
| Wisconsin Academy Main Campus Columbus |
115 | 2 | 20.0 mi | |
| Columbus Utilities Columbus |
5,173 | 2 | 20.4 mi | |
| Friesland Waterworks Friesland |
345 | 3 | 21.6 mi | |
| Randolph Water Dept Randolph |
1,800 | 2 | 22.7 mi | |
| Wisconsin Dells Waterworks Wisconsin Dells |
3,232 | 2 | 23.3 mi |
Non-community systems in Columbia County (113: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Columbia 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.