Water quality for ZIP code 53120
ZIP 53120 covers East Troy, Potter Lake, and Mukwonago in Walworth County, Wisconsin, one of 14 ZIP codes in the county. 251 active public water systems serve the county; 66 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Walworth County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| East Troy S D 3 East Troy |
40 | 3 | 1.6 mi | |
| Troy Center Sanitary District Troy Center |
170 | 0 | 2.5 mi | |
| Troy Terrace MHP Eagle |
150 | 0 | 3.7 mi | |
| Country Estates Sanitary District Town of Lyons 1 Burlington |
500 | 0 | 10.4 mi | |
| Elkhorn Waterworks Elkhorn |
10,317 | 1 | 11.2 mi | |
| Town Hall Apts Delavan |
90 | 0 | 11.8 mi | |
| Ludwell Estates Elkhorn |
100 | 6 | 12.5 mi | |
| Lake Como Sanitary Dist 1 Lake Geneva |
3,038 | 0 | 13.9 mi | |
| Snug Harbor Inn MHP Delavan |
30 | 1 | 13.9 mi | |
| Geneva National Community Services Lake Geneva |
2,250 | 0 | 14.6 mi | |
| Lake Geneva Utility Commission Lake Geneva |
7,107 | 1 | 14.8 mi | |
| Coachmans Terrace MHP Lake Geneva |
125 | 1 | 14.9 mi | |
| Westshire Farms at the Lakes Delavan |
300 | 0 | 15.0 mi | |
| Sage Meadow of Lake Geneva Lake Geneva |
33 | 1 | 15.2 mi | |
| Vintage on the Ponds Delavan |
60 | 2 | 16.1 mi | |
| Geneva Landings Delavan |
25 | 0 | 16.1 mi | |
| Delavan Waterworks Delavan |
9,028 | 1 | 16.4 mi | |
| Delavan Club Condos Delavan |
395 | 1 | 16.4 mi | |
| Whitewater Waterworks Whitewater |
14,000 | 2 | 16.4 mi | |
| Williams Bay Waterworks Williams Bay |
2,601 | 2 | 17.0 mi | |
| Inspiration Ministries & Meadows Apts Walworth |
80 | 0 | 18.0 mi | |
| Interlaken Resort and Village Lake Geneva |
500 | 0 | 18.2 mi | |
| Bloomfield, Village of Pell Lake |
4,071 | 5 | 18.5 mi | |
| Pioneer Estates of Delavan Delavan |
400 | 0 | 18.8 mi | |
| Fontana Water Utility Fontana |
1,839 | 2 | 19.5 mi |
Non-community systems in Walworth County (221: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Walworth 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.