Water quality for ZIP code 62951
ZIP 62951 covers Johnston City in Williamson County, Illinois, one of 12 ZIP codes in the county. 26 active public water systems serve the county; 20 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Williamson County
23 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Highway 37 North Pwd |
1,068 | 2 | 1.7 mi | |
| Ferges Water District |
1,185 | 2 | 2.9 mi | |
| Pittsburg Pittsburg |
2,948 | 0 | 4.6 mi | |
| Herrin Herrin |
12,747 | 6 | 5.7 mi | |
| Freeman Spur Freemanspur |
373 | 1 | 5.7 mi | |
| Marion Marion |
16,855 | 0 | 6.0 mi | |
| Marion Mobile Home Village Marion |
170 | 0 | 6.2 mi | |
| Energy Energy |
984 | 0 | 6.3 mi | |
| Colp Colp |
506 | 2 | 8.4 mi | |
| Crainville Crainville |
1,711 | 3 | 8.6 mi | |
| Coal Valley Pwd |
4,023 | 1 | 9.1 mi | |
| Carterville Carterville |
6,528 | 2 | 9.3 mi | |
| Blairsville Pwd Carterville |
807 | 6 | 10.1 mi | |
| Cambria Cambria |
1,727 | 1 | 10.3 mi | |
| Hurst Hurst |
782 | 4 | 11.3 mi | |
| The Orchards MHC Carterville |
253 | 0 | 11.4 mi | |
| Bush Bush |
285 | 1 | 11.6 mi | |
| Fci-Marion Marion |
1,544 | 3 | 11.9 mi | |
| Lake of Egypt Pwd Marion |
11,368 | 1 | 14.0 mi | |
| Creal Springs Creal Springs |
683 | 2 | 14.9 mi | |
| Devils Kitchen Water District |
1,428 | 6 | 14.9 mi | |
| Corinth Pwd |
3,927 | 2 | — | |
| Crab Orchard Refuge |
25 | 0 | — |
Non-community systems in Williamson County (2: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Walmart Supercenter #0216 |
25 | 1 | 1 | |
|
LJ Ice Company |
25 | 1 | 1 |
About this data
Water systems are matched to Williamson 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 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.