Water quality for ZIP code 46574
ZIP 46574 covers Koontz Lake, Walkerton, and Fish Lake in LaPorte County, Indiana, one of 12 ZIP codes in the county. 126 active public water systems serve the county; 84 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in LaPorte County
22 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Kingsford Heights Water Kingsford Heights |
1,800 | 1 | 10.6 mi | |
| Neighbors of Rolling Prairie La Porte |
70 | 3 | 13.9 mi | |
| Shady Grove Mobile Home Park La Porte |
100 | 6 | 14.6 mi | |
| Willow Creek Crossing La Porte |
34 | 6 | 14.6 mi | |
| Laporte Water Works Laporte |
22,197 | 2 | 14.7 mi | |
| Share Foundation La Porte |
86 | 1 | 18.2 mi | |
| Michiana Estates LLC Water System La Porte |
35 | 6 | 18.9 mi | |
| Sacred Heart Apostolic School Rolling Prairie |
46 | 1 | 19.1 mi | |
| J. B. Water Works, Inc. Laporte |
307 | 4 | 20.6 mi | |
| Wanatah Water Utility Wanatah |
1,050 | 0 | 21.0 mi | |
| Indian Springs Town Homes Michigan City |
90 | 3 | 21.3 mi | |
| Colonial Mobile Court Michigan City |
99 | 3 | 21.3 mi | |
| Westville Water Department Westville |
1,800 | 4 | 21.7 mi | |
| Westville Correctional Facility Westville |
2,850 | 0 | 21.8 mi | |
| New Durham Estates Westville |
1,099 | 1 | 21.9 mi | |
| South Coast Conservancy District Westville |
2,013 | 2 | 22.0 mi | |
| Neighbors of Westville Estates LLC Westville |
315 | 5 | 22.7 mi | |
| Neighbors of Beechwood LLC Michigan City |
63 | 2 | 23.1 mi | |
| Lacrosse Water Department Lacrosse |
540 | 2 | 23.8 mi | |
| Michigan City Department of Water Works Michigan City |
33,996 | 1 | 25.4 mi | |
| Duneland Beach Association Michigan City |
300 | 2 | 25.9 mi | |
| Long Beach Water Department Long Beach |
2,050 | 0 | 26.1 mi |
Non-community systems in LaPorte County (103: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to LaPorte 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 Indiana 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.