Water quality for ZIP code 46544
ZIP 46544 covers Mishawaka in St. Joseph County, Indiana, one of 20 ZIP codes in the county. 220 active public water systems serve the county; 135 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in St. Joseph County
14 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Sisters-St. Francis Perpetual Adoration Mishawaka |
145 | 2 | 4.3 mi | |
| Clearwater Village Mobile Home Park South Bend |
400 | 0 | 6.7 mi | |
| Sunset Village & RV Park South Bend |
25 | 7 | 7.1 mi | |
| South Bend Water Works South Bend |
115,000 | 1 | 7.5 mi | |
| Sisters of Holy Cross-St. Marys College Notre Dame |
2,111 | 1 | 7.5 mi | |
| University of Notre Dame Notre Dame |
7,400 | 1 | 7.8 mi | |
| The Hills at St. Joe Farm Granger |
25 | 3 | 8.6 mi | |
| Lakeville Water Department Lakeville |
750 | 0 | 8.9 mi | |
| Aqua Indiana Wedgewood Park Water Util Granger |
645 | 1 | 11.1 mi | |
| North Liberty Water Works North Liberty |
1,896 | 1 | 15.6 mi | |
| New Carlisle Water Works New Carlisle |
1,861 | 0 | 19.7 mi | |
| Walkerton Light & Water Walkerton |
2,262 | 0 | 20.1 mi | |
| Hamilton Grove New Carlisle |
384 | 3 | 20.7 mi | |
| Holston Rentals Walkerton |
60 | 2 | 24.5 mi |
Non-community systems in St. Joseph County (205: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to St. Joseph 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.