Water quality for ZIP code 52157
ZIP 52157 covers McGregor and Marquette in Clayton County, Iowa, one of 15 ZIP codes in the county. 45 active public water systems serve the county; 20 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Clayton County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Walters Mobile Home Park Mcgregor |
25 | 1 | 2.8 mi | |
| McGregor Water Dept Mcgregor |
747 | 1 | 2.8 mi | |
| Marquette Water Supply Marquette |
429 | 0 | 3.4 mi | |
| Farmersburg Waterworks Farmersburg |
276 | 0 | 7.7 mi | |
| Monona Municipal Water Dept Monona |
1,471 | 0 | 7.9 mi | |
| Clayton Water Supply Clayton |
45 | 1 | 9.5 mi | |
| Saint Olaf Water Supply Saint Olaf |
106 | 0 | 9.9 mi | |
| Garnavillo Water Supply Garnavillo |
763 | 0 | 10.7 mi | |
| Luana Water Works Luana |
301 | 1 | 11.1 mi | |
| Scenic Acres Elkader |
27 | 0 | 14.0 mi | |
| Elkader Muni Water Dept Elkader |
1,219 | 0 | 14.1 mi | |
| Guttenberg Water Utility Guttenberg |
1,817 | 0 | 18.1 mi | |
| Volga Water Supply Volga City |
203 | 0 | 21.5 mi | |
| Edgewood Water Supply Edgewood |
939 | 0 | 27.4 mi | |
| Strawberry Point Water Supply Strawberry Point |
1,155 | 0 | 27.8 mi |
Non-community systems in Clayton County (29: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Clayton 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 Iowa 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.