Water quality for ZIP code 46624
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, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Mishawaka Utilities Mishawaka |
49,675 | 0 | |
| University of Notre Dame Notre Dame |
7,400 | 1 | |
| Walkerton Light & Water Walkerton |
2,262 | 0 | |
| Sisters of Holy Cross-St. Marys College Notre Dame |
2,111 | 1 | |
| North Liberty Water Works North Liberty |
1,896 | 1 | |
| New Carlisle Water Works New Carlisle |
1,861 | 0 | |
| Lakeville Water Department Lakeville |
750 | 0 | |
| Aqua Indiana Wedgewood Park Water Util Granger |
645 | 1 | |
| Clearwater Village Mobile Home Park South Bend |
400 | 0 | |
| Hamilton Grove New Carlisle |
384 | 3 | |
| Sisters-St. Francis Perpetual Adoration Mishawaka |
145 | 2 | |
| Holston Rentals Walkerton |
60 | 2 | |
| Sunset Village & RV Park South Bend |
25 | 7 | |
| The Hills at St. Joe Farm Granger |
25 | 3 |
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, largest 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.
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.