Water quality for ZIP code 61237
ZIP 61237 covers Buffalo Prairie in Rock Island County, Illinois, one of 17 ZIP codes in the county. 119 active public water systems serve the county; 55 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Rock Island County
48 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Rock Island Rock Island |
39,018 | 3 | |
| East Moline East Moline |
21,374 | 1 | |
| Rock Island Arsenal, US Army |
7,800 | 2 | |
| Silvis Silvis |
7,473 | 7 | |
| Milan Milan |
4,945 | 3 | |
| Coal Valley Coal Valley |
3,873 | 3 | |
| Carbon Cliff Carbon Cliff |
2,134 | 4 | |
| Hampton Hampton |
1,863 | 1 | |
| Port Byron Port Byron |
1,668 | 4 | |
| Silvis Heights Water Corp |
1,450 | 7 | |
| IL American-Andalusia Andalusia |
1,184 | 1 | |
| Rapids City Cordova |
962 | 3 | |
| Clover Leaf Village MHP |
732 | 3 | |
| Cordova Cordova |
640 | 3 | |
| High Cliff Estates Milan |
560 | 2 | |
| Reynolds Reynolds |
508 | 0 | |
| Mississippi Manufactured Home Community East Moline |
503 | 4 | |
| East Moline Correctional Center East Moline |
500 | 0 | |
| Croppers 1st 4th and 5th Addition |
495 | 1 | |
| Woodland a and B MHP |
490 | 3 | |
| Cedar Brook Estates Subdivision |
450 | 3 | |
| Edgington Water District |
391 | 0 | |
| Falcon Farms |
350 | 1 | |
| Ilcv Candle Mhp, LLC Coal Valley |
340 | 4 | |
| Ridgewood Ledges Water Association |
300 | 0 |
Non-community systems in Rock Island County (70: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Rock Island 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 Illinois 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.