Water quality for ZIP code 61371
ZIP 61371 covers Triumph in LaSalle County, Illinois, one of 26 ZIP codes in the county. 172 active public water systems serve the county; 101 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in LaSalle County
36 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Ottawa Ottawa |
18,097 | 3 | |
| Peru Peru |
9,896 | 2 | |
| LA Salle La Salle |
9,700 | 4 | |
| Mendota Mendota |
7,100 | 3 | |
| Marseilles Marseilles |
5,061 | 4 | |
| IL American-Lake Holiday |
4,750 | 0 | |
| Oglesby Oglesby |
4,500 | 1 | |
| Seneca Seneca |
2,353 | 0 | |
| Sheridan Correctional Center |
1,670 | 2 | |
| Earlville Earlville |
1,613 | 0 | |
| North Utica North Utica |
1,323 | 3 | |
| Wildwood Estates |
1,001 | 0 | |
| Leland Leland |
951 | 0 | |
| Tonica Tonica |
705 | 0 | |
| Grand Ridge Grand Ridge |
515 | 1 | |
| Naplate Naplate |
465 | 2 | |
| Lostant Lostant |
463 | 2 | |
| Fields Hill Improvement Association |
312 | 7 | |
| Cedar Point Water Company |
266 | 1 | |
| Four Star Campground Marseilles |
250 | 1 | |
| Rutland Rutland |
250 | 0 | |
| Jonesville Pwd |
243 | 1 | |
| Country Acres MHP (la Salle County) |
222 | 1 | |
| Retz Addn Improvement Association |
168 | 3 | |
| Countryside Estates MHP |
158 | 0 |
Non-community systems in LaSalle County (135: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to LaSalle 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.